diff --git a/bloopgun-core/src/main/java/bloop/bloopgun/internal/ProjDirHelper.java b/bloopgun-core/src/main/java/bloop/bloopgun/internal/ProjDirHelper.java
new file mode 100644
index 0000000000..11d03b0406
--- /dev/null
+++ b/bloopgun-core/src/main/java/bloop/bloopgun/internal/ProjDirHelper.java
@@ -0,0 +1,38 @@
+package bloop.bloopgun.internal;
+
+// FIXME Copied from shared/src/main/java/bloop/io/internal/ProjDirHelper.java
+
+import coursierapi.shaded.coursier.cache.shaded.dirs.GetWinDirs;
+import coursierapi.shaded.coursier.cache.shaded.dirs.ProjectDirectories;
+import coursierapi.shaded.coursier.jniutils.WindowsKnownFolders;
+import coursierapi.shaded.coursier.paths.Util;
+
+import java.util.ArrayList;
+
+public class ProjDirHelper {
+  public static String cacheDir() {
+    return ((ProjectDirectories) get()).cacheDir;
+  }
+  public static String dataDir() {
+    return ((ProjectDirectories) get()).dataDir;
+  }
+  // not letting ProjectDirectories leak in the signature, getting weird scalac crashes
+  // with Scala 2.12.5 (because of shading?)
+  private static Object get() {
+    GetWinDirs getWinDirs;
+    if (Util.useJni()) {
+      getWinDirs = new GetWinDirs() {
+        public String[] getWinDirs(String ...guids) {
+          ArrayList<String> l = new ArrayList<>();
+          for (int idx = 0; idx < guids.length; idx++) {
+            l.add(WindowsKnownFolders.knownFolderPath("{" + guids[idx] + "}"));
+          }
+          return l.toArray(new String[l.size()]);
+        }
+      };
+    } else {
+      getWinDirs = GetWinDirs.powerShellBased;
+    }
+    return ProjectDirectories.from("", "", "bloop", getWinDirs);
+  }
+}
diff --git a/bloopgun-core/src/main/scala/bloop/bloopgun/Defaults.scala b/bloopgun-core/src/main/scala/bloop/bloopgun/Defaults.scala
index 56fcec1b7a..0f835520fd 100644
--- a/bloopgun-core/src/main/scala/bloop/bloopgun/Defaults.scala
+++ b/bloopgun-core/src/main/scala/bloop/bloopgun/Defaults.scala
@@ -3,7 +3,6 @@ package bloop.bloopgun
 import java.nio.file.attribute.PosixFilePermissions
 import java.nio.file.{Files, Path, Paths}
 import scala.util.Properties
-import coursierapi.shaded.coursier.cache.shaded.dirs.{GetWinDirs, ProjectDirectories}
 
 object Defaults {
   val Version = "0.9.3"
@@ -20,23 +19,10 @@ object Defaults {
     val SendThreadWaitTerminationMillis = 5000.toLong
   }
 
-  // also more or less in bloop.io.Paths…
-  private lazy val projectDirectories = {
-    val getWinDirs: GetWinDirs =
-      if (coursierapi.shaded.coursier.paths.Util.useJni())
-        new GetWinDirs {
-          def getWinDirs(guids: String*) =
-            guids.map { guid =>
-              coursierapi.shaded.coursier.jniutils.WindowsKnownFolders
-                .knownFolderPath("{" + guid + "}")
-            }.toArray
-        }
-      else
-        GetWinDirs.powerShellBased
-    ProjectDirectories.from("", "", "bloop", getWinDirs)
+  private lazy val (bloopCacheDir, bloopDataDir) = {
+    import bloop.bloopgun.internal.ProjDirHelper
+    (Paths.get(ProjDirHelper.cacheDir()), Paths.get(ProjDirHelper.dataDir()))
   }
-  private lazy val bloopCacheDir: Path = Paths.get(projectDirectories.cacheDir)
-  private lazy val bloopDataDir: Path = Paths.get(projectDirectories.dataDir)
 
   lazy val daemonDir: Path = {
     def defaultDir = {
diff --git a/build.sbt b/build.sbt
index 63835b8096..490e118639 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,4 +1,5 @@
 import build.BuildImplementation.BuildDefaults
+import scala.util.Properties
 
 inThisBuild(
   List(
@@ -248,7 +249,8 @@ lazy val bloopgun = project
     sonatypeSetting,
     name := "bloopgun",
     libraryDependencies ++= List(
-      Dependencies.logback
+      Dependencies.logback,
+      Dependencies.svmSubs
     ),
     mainClass in GraalVMNativeImage := Some("bloop.bloopgun.Bloopgun"),
     graalVMNativeImageCommand := {
@@ -259,6 +261,9 @@ lazy val bloopgun = project
     graalVMNativeImageOptions ++= {
       val reflectionFile = sourceDirectory.in(Compile).value./("graal")./("reflection.json")
       assert(reflectionFile.exists)
+      val extra =
+        if (Properties.isMac) List("-H:IncludeResources=META-INF/native/darwin/ipcsocket.dylib")
+        else Nil
       List(
         "--no-server",
         "--enable-http",
@@ -273,8 +278,10 @@ lazy val bloopgun = project
         "--initialize-at-build-time=scala.Function1",
         "--initialize-at-build-time=scala.Function2",
         "--initialize-at-build-time=scala.runtime.StructuralCallSite",
-        "--initialize-at-build-time=scala.runtime.EmptyMethodCache"
-      )
+        "--initialize-at-build-time=scala.runtime.EmptyMethodCache",
+        "--initialize-at-build-time=scala.runtime.LambdaDeserialize",
+        "--initialize-at-build-time=scala.collection.immutable.VM"
+      ) ++ extra
     }
   )
 
diff --git a/config/src/test/scala/bloop/config/utils/BaseConfigSuite.scala b/config/src/test/scala/bloop/config/utils/BaseConfigSuite.scala
index fc8c9ae0ec..982d8040cf 100644
--- a/config/src/test/scala/bloop/config/utils/BaseConfigSuite.scala
+++ b/config/src/test/scala/bloop/config/utils/BaseConfigSuite.scala
@@ -98,7 +98,10 @@ trait BaseConfigSuite {
     }
   }
 
-  protected def hasPathEntryName(entryName: String, paths: List[Path]): Boolean = {
+  protected def hasPathEntryName(
+      entryName: String,
+      paths: List[bloop.config.PlatformFiles.Path]
+  ): Boolean = {
     val pathValidEntryName = entryName.replace('/', File.separatorChar)
     val pathAsStr = paths.map(_.toString)
     pathAsStr.exists(_.contains(pathValidEntryName))
@@ -166,6 +169,15 @@ trait BaseConfigSuite {
       matchMethod: (String, String) => Boolean,
       assertMethod: (String, Boolean) => Unit
   ): Unit = {
+    def getFileName(path: bloop.config.PlatformFiles.Path): String = {
+      // possibly broken in some corner cases, but should do the job in the tests here
+      val pathStr = path.toString
+      val slashIdx = pathStr.lastIndexOf('/')
+      val bslashIdx = pathStr.lastIndexOf('\\')
+      val idx = slashIdx.max(bslashIdx)
+      if (idx >= 0) pathStr.drop(idx + 1)
+      else pathStr
+    }
     configs.foreach(config =>
       jarNames
         .foreach(jarName =>
diff --git a/frontend/src/test/resources/semanticdb-scalac_2.12.15-4.4.31.jar b/frontend/src/test/resources/semanticdb-scalac_2.12.15-4.4.31.jar
new file mode 100644
index 0000000000..fd7ff2396c
Binary files /dev/null and b/frontend/src/test/resources/semanticdb-scalac_2.12.15-4.4.31.jar differ
diff --git a/frontend/src/test/resources/semanticdb_2.12.8-4.1.11.jar b/frontend/src/test/resources/semanticdb-scalac_2.12.5-4.1.9.jar
similarity index 59%
rename from frontend/src/test/resources/semanticdb_2.12.8-4.1.11.jar
rename to frontend/src/test/resources/semanticdb-scalac_2.12.5-4.1.9.jar
index 9c8d0f760b..8f98e980e1 100644
Binary files a/frontend/src/test/resources/semanticdb_2.12.8-4.1.11.jar and b/frontend/src/test/resources/semanticdb-scalac_2.12.5-4.1.9.jar differ
diff --git a/frontend/src/test/scala/bloop/BuildLoaderSpec.scala b/frontend/src/test/scala/bloop/BuildLoaderSpec.scala
index 214d59d307..27122e8fb4 100644
--- a/frontend/src/test/scala/bloop/BuildLoaderSpec.scala
+++ b/frontend/src/test/scala/bloop/BuildLoaderSpec.scala
@@ -24,7 +24,7 @@ object BuildLoaderSpec extends BaseSuite {
 
   testLoad("reload if settings are added") { (testBuild, logger) =>
     val settings =
-      WorkspaceSettings.fromSemanticdbSettings("0.2.0", "4.2.0", List(BuildInfo.scalaVersion))
+      WorkspaceSettings.fromSemanticdbSettings("0.2.0", "4.4.31", List(BuildInfo.scalaVersion))
     testBuild.state.build.checkForChange(Some(settings), logger).map {
       case Build.ReturnPreviousState =>
         sys.error(s"Expected return updated state, got previous state")
@@ -37,7 +37,7 @@ object BuildLoaderSpec extends BaseSuite {
   }
 
   val sameSettings =
-    WorkspaceSettings.fromSemanticdbSettings("0.2.0", "4.2.0", List(BuildInfo.scalaVersion))
+    WorkspaceSettings.fromSemanticdbSettings("0.2.0", "4.4.31", List(BuildInfo.scalaVersion))
 
   testLoad("do not reload if same settings are added", Some(sameSettings)) { (testBuild, logger) =>
     testBuild.state.build.checkForChange(Some(sameSettings), logger).map {
@@ -63,7 +63,7 @@ object BuildLoaderSpec extends BaseSuite {
 
   testLoad("reload if new Java settings are added", Some(sameSettings)) { (testBuild, logger) =>
     val newSettings =
-      WorkspaceSettings.fromSemanticdbSettings("0.1.0", "4.2.0", List(BuildInfo.scalaVersion))
+      WorkspaceSettings.fromSemanticdbSettings("0.1.0", "4.4.31", List(BuildInfo.scalaVersion))
     testBuild.state.build.checkForChange(Some(newSettings), logger).map {
       case Build.ReturnPreviousState =>
         sys.error(s"Expected return updated state, got previous state")
diff --git a/frontend/src/test/scala/bloop/ConsoleSpec.scala b/frontend/src/test/scala/bloop/ConsoleSpec.scala
index f8bd1d3c96..baba4e77ee 100644
--- a/frontend/src/test/scala/bloop/ConsoleSpec.scala
+++ b/frontend/src/test/scala/bloop/ConsoleSpec.scala
@@ -42,7 +42,7 @@ object ConsoleSpec extends BaseSuite {
       val coursierClasspathArgs =
         classpathB.flatMap(elem => Seq("--extra-jars", elem.syntax))
       val expectedCommand =
-        s"coursier launch com.lihaoyi:ammonite_2.12.8:latest.release --main-class ammonite.Main ${coursierClasspathArgs
+        s"coursier launch com.lihaoyi:ammonite_2.12.15:latest.release --main-class ammonite.Main ${coursierClasspathArgs
           .mkString(" ")} ${("--" :: ammArgs).mkString(" ")}"
 
       assertNoDiff(
diff --git a/frontend/src/test/scala/bloop/bsp/BspCompileSpec.scala b/frontend/src/test/scala/bloop/bsp/BspCompileSpec.scala
index 4aa3b6fae0..ad6eb7bc45 100644
--- a/frontend/src/test/scala/bloop/bsp/BspCompileSpec.scala
+++ b/frontend/src/test/scala/bloop/bsp/BspCompileSpec.scala
@@ -437,9 +437,9 @@ class BspCompileSpec(
       }
 
       // Change the semanticdb jar every time we upgrade Scala version
-      assert(BuildInfo.scalaVersion == "2.12.8")
+      assert(BuildInfo.scalaVersion == "2.12.15")
       val sourceDir = workspace.resolve("a").resolve("src")
-      val semanticdbJar = unsafeGetResource("semanticdb_2.12.8-4.1.11.jar")
+      val semanticdbJar = unsafeGetResource("semanticdb-scalac_2.12.15-4.4.31.jar")
       val semanticdbOpts = List(
         s"-Xplugin:$semanticdbJar",
         "-Yrangepos",
diff --git a/frontend/src/test/scala/bloop/bsp/BspMetalsClientSpec.scala b/frontend/src/test/scala/bloop/bsp/BspMetalsClientSpec.scala
index a26534c193..5a7cb5536a 100644
--- a/frontend/src/test/scala/bloop/bsp/BspMetalsClientSpec.scala
+++ b/frontend/src/test/scala/bloop/bsp/BspMetalsClientSpec.scala
@@ -33,7 +33,7 @@ object TcpBspMetalsClientSpec extends BspMetalsClientSpec(BspProtocol.Tcp)
 class BspMetalsClientSpec(
     override val protocol: BspProtocol
 ) extends BspBaseSuite {
-  private val testedScalaVersion = "2.12.8"
+  private val testedScalaVersion = "2.12.15"
 
   override def test(name: String)(fun: => Any): Unit =
     super.test(name) {
@@ -46,7 +46,7 @@ class BspMetalsClientSpec(
       val projects = List(`A`)
       val configDir = TestProject.populateWorkspace(workspace, projects)
       val logger = new RecordingLogger(ansiCodesSupported = false)
-      val semanticdbVersion = "4.2.0"
+      val semanticdbVersion = "4.4.31"
       val extraParams = BloopExtraBuildParams(
         ownsBuildFiles = None,
         clientClassesRootDir = None,
@@ -61,9 +61,9 @@ class BspMetalsClientSpec(
           configDir,
           """|{
              |    "javaSemanticDBVersion": "0.5.7",
-             |    "semanticDBVersion": "4.2.0",
+             |    "semanticDBVersion": "4.4.31",
              |    "supportedScalaVersions": [
-             |        "2.12.8"
+             |        "2.12.15"
              |    ]
              |}
              |""".stripMargin
@@ -75,7 +75,7 @@ class BspMetalsClientSpec(
              |-P:semanticdb:failures:warning
              |-P:semanticdb:sourceroot:$workspace
              |-P:semanticdb:synthetics:on
-             |-Xplugin:semanticdb-scalac_2.12.8-4.2.0.jar
+             |-Xplugin:semanticdb-scalac_2.12.15-4.4.31.jar
              |-Yrangepos
              |""".stripMargin
         )
@@ -91,7 +91,7 @@ class BspMetalsClientSpec(
 
   test("do not initialize metals client and save settings with unsupported scala version") {
     TestUtil.withinWorkspace { workspace =>
-      val semanticdbVersion = "4.2.0" // Doesn't support 2.12.4
+      val semanticdbVersion = "4.4.31" // Doesn't support 2.12.4
       val `A` = TestProject(workspace, "A", Nil, scalaVersion = Some("2.12.4"))
       val projects = List(`A`)
       val configDir = TestProject.populateWorkspace(workspace, projects)
@@ -100,7 +100,7 @@ class BspMetalsClientSpec(
         ownsBuildFiles = None,
         clientClassesRootDir = None,
         semanticdbVersion = Some(semanticdbVersion),
-        supportedScalaVersions = Some(List("2.12.8")),
+        supportedScalaVersions = Some(List("2.12.15")),
         javaSemanticdbVersion = Some("0.5.7")
       )
 
@@ -109,9 +109,9 @@ class BspMetalsClientSpec(
           configDir,
           """|{
              |    "javaSemanticDBVersion": "0.5.7",
-             |    "semanticDBVersion": "4.2.0",
+             |    "semanticDBVersion": "4.4.31",
              |    "supportedScalaVersions": [
-             |        "2.12.8"
+             |        "2.12.15"
              |    ]
              |}
              |""".stripMargin
@@ -125,7 +125,7 @@ class BspMetalsClientSpec(
 
   test("initialize metals client in workspace with already enabled semanticdb") {
     TestUtil.withinWorkspace { workspace =>
-      val pluginPath = s"-Xplugin:path-to-plugin/semanticdb-scalac_2.12.8-4.2.0.jar.jar"
+      val pluginPath = s"-Xplugin:path-to-plugin/semanticdb-scalac_2.12.15-4.4.31.jar.jar"
       val defaultScalacOptions = List(
         "-P:semanticdb:failures:warning",
         s"-P:semanticdb:sourceroot:$workspace",
@@ -144,7 +144,7 @@ class BspMetalsClientSpec(
       val projects = List(`A`)
       val configDir = TestProject.populateWorkspace(workspace, projects)
       val logger = new RecordingLogger(ansiCodesSupported = false)
-      val semanticdbVersion = "4.2.0"
+      val semanticdbVersion = "4.4.31"
       val extraParams = BloopExtraBuildParams(
         ownsBuildFiles = None,
         clientClassesRootDir = None,
@@ -158,9 +158,9 @@ class BspMetalsClientSpec(
           configDir,
           """|{
              |    "javaSemanticDBVersion": "0.5.7",
-             |    "semanticDBVersion": "4.2.0",
+             |    "semanticDBVersion": "4.4.31",
              |    "supportedScalaVersions": [
-             |        "2.12.8"
+             |        "2.12.15"
              |    ]
              |}
              |""".stripMargin
@@ -183,7 +183,7 @@ class BspMetalsClientSpec(
         "-P:semanticdb:failures:warning",
         "-P:semanticdb:synthetics:on",
         "-Xplugin-require:semanticdb",
-        s"-Xplugin:path-to-plugin/semanticdb-scalac_2.12.8-4.2.0.jar.jar",
+        s"-Xplugin:path-to-plugin/semanticdb-scalac_2.12.15-4.4.31.jar.jar",
         "-Yrangepos"
       )
       val `A` = TestProject(
@@ -196,7 +196,7 @@ class BspMetalsClientSpec(
       val projects = List(`A`)
       val configDir = TestProject.populateWorkspace(workspace, projects)
       val logger = new RecordingLogger(ansiCodesSupported = false)
-      val semanticdbVersion = "4.2.0"
+      val semanticdbVersion = "4.4.31"
       val extraParams = BloopExtraBuildParams(
         ownsBuildFiles = None,
         clientClassesRootDir = None,
@@ -210,9 +210,9 @@ class BspMetalsClientSpec(
           configDir,
           """|{
              |    "javaSemanticDBVersion": "0.5.7",
-             |    "semanticDBVersion": "4.2.0",
+             |    "semanticDBVersion": "4.4.31",
              |    "supportedScalaVersions": [
-             |        "2.12.8"
+             |        "2.12.15"
              |    ]
              |}
              |""".stripMargin
@@ -226,7 +226,7 @@ class BspMetalsClientSpec(
 
   test("should save workspace settings with cached build") {
     TestUtil.withinWorkspace { workspace =>
-      val semanticdbVersion = "4.2.0"
+      val semanticdbVersion = "4.4.31"
       val javaSemanticdbVersion = "0.5.7"
       val extraParams = BloopExtraBuildParams(
         ownsBuildFiles = None,
@@ -303,7 +303,7 @@ class BspMetalsClientSpec(
 
       val javaNormalClientsVersion = "0.5.7"
       val javaMetalsVersion = "0.1.0"
-      val normalClientsVersion = "4.2.0"
+      val normalClientsVersion = "4.4.31"
       val metalsClientVersion = "4.1.11"
       val client1 = createClient(javaNormalClientsVersion, normalClientsVersion)
       val client2 = createClient(javaNormalClientsVersion, normalClientsVersion)
@@ -329,7 +329,7 @@ class BspMetalsClientSpec(
       val logger = new RecordingLogger(ansiCodesSupported = false)
       WorkspaceSettings.writeToFile(
         configDir,
-        WorkspaceSettings.fromSemanticdbSettings("0.5.7", "4.2.0", List(testedScalaVersion)),
+        WorkspaceSettings.fromSemanticdbSettings("0.5.7", "4.4.31", List(testedScalaVersion)),
         logger
       )
       loadBspState(workspace, projects, logger) { state =>
@@ -349,7 +349,7 @@ class BspMetalsClientSpec(
       val logger = new RecordingLogger(ansiCodesSupported = false)
       WorkspaceSettings.writeToFile(
         configDir,
-        WorkspaceSettings.fromSemanticdbSettings("0.5.7", "4.1.11", List(testedScalaVersion)),
+        WorkspaceSettings.fromSemanticdbSettings("0.5.7", "4.4.31", List(testedScalaVersion)),
         logger
       )
       loadBspState(workspace, projects, logger) { state =>
@@ -455,7 +455,7 @@ class BspMetalsClientSpec(
       val extraParams = BloopExtraBuildParams(
         ownsBuildFiles = None,
         clientClassesRootDir = None,
-        semanticdbVersion = Some("4.2.0"),
+        semanticdbVersion = Some("4.4.31"),
         supportedScalaVersions = Some(List(testedScalaVersion)),
         javaSemanticdbVersion = Some("0.5.7")
       )
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index a73761c205..66d4fd2ee0 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -1,7 +1,7 @@
 package build
 
 object Dependencies {
-  val Scala212Version = "2.12.8"
+  val Scala212Version = "2.12.15"
 
   // Keep in sync in BloopComponentCompiler
   val zincVersion = "1.3.0-M4+47-d881fa2f"
@@ -120,4 +120,7 @@ object Dependencies {
 
   val libdaemonjvm = "io.github.alexarchambault.libdaemon" %% "libdaemon" % "0.0.8"
   val ipcsocket = "io.github.alexarchambault.tmp.ipcsocket" % "ipcsocket" % "1.4.1-aa-5-1"
+
+  val svmSubs = "org.scalameta" %% "svm-subs" % "20.1.0"
+
 }
diff --git a/project/build.sbt b/project/build.sbt
index 87574a6f86..fb6d6427e2 100644
--- a/project/build.sbt
+++ b/project/build.sbt
@@ -1,6 +1,6 @@
 exportJars := true
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.1.0")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.5.1")
 addSbtPlugin("com.dwijnand" % "sbt-dynver" % "4.0.0")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.0.4")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.7.0")
diff --git a/shared/src/main/java/bloop/io/internal/ProjDirHelper.java b/shared/src/main/java/bloop/io/internal/ProjDirHelper.java
new file mode 100644
index 0000000000..50cd27828d
--- /dev/null
+++ b/shared/src/main/java/bloop/io/internal/ProjDirHelper.java
@@ -0,0 +1,38 @@
+package bloop.io.internal;
+
+// FIXME Also in bloopgun-core/src/main/java/bloop/bloopgun/internal/ProjDirHelper.java
+
+import coursierapi.shaded.coursier.cache.shaded.dirs.GetWinDirs;
+import coursierapi.shaded.coursier.cache.shaded.dirs.ProjectDirectories;
+import coursierapi.shaded.coursier.jniutils.WindowsKnownFolders;
+import coursierapi.shaded.coursier.paths.Util;
+
+import java.util.ArrayList;
+
+public class ProjDirHelper {
+  public static String cacheDir() {
+    return ((ProjectDirectories) get()).cacheDir;
+  }
+  public static String dataDir() {
+    return ((ProjectDirectories) get()).dataDir;
+  }
+  // not letting ProjectDirectories leak in the signature, getting weird scalac crashes
+  // with Scala 2.12.5 (because of shading?)
+  private static Object get() {
+    GetWinDirs getWinDirs;
+    if (Util.useJni()) {
+      getWinDirs = new GetWinDirs() {
+        public String[] getWinDirs(String ...guids) {
+          ArrayList<String> l = new ArrayList<>();
+          for (int idx = 0; idx < guids.length; idx++) {
+            l.add(WindowsKnownFolders.knownFolderPath("{" + guids[idx] + "}"));
+          }
+          return l.toArray(new String[l.size()]);
+        }
+      };
+    } else {
+      getWinDirs = GetWinDirs.powerShellBased;
+    }
+    return ProjectDirectories.from("", "", "bloop", getWinDirs);
+  }
+}
diff --git a/shared/src/main/scala/bloop/io/Paths.scala b/shared/src/main/scala/bloop/io/Paths.scala
index a6b5e8aba8..15e3090956 100644
--- a/shared/src/main/scala/bloop/io/Paths.scala
+++ b/shared/src/main/scala/bloop/io/Paths.scala
@@ -14,31 +14,20 @@ import java.nio.file.{
   Paths => NioPaths
 }
 import java.util
-import coursierapi.shaded.coursier.cache.shaded.dirs.{GetWinDirs, ProjectDirectories}
 import scala.collection.mutable
 import java.nio.file.NoSuchFileException
 import scala.util.Properties
 
 object Paths {
-  private lazy val projectDirectories = {
-    val getWinDirs: GetWinDirs =
-      if (coursierapi.shaded.coursier.paths.Util.useJni())
-        new GetWinDirs {
-          def getWinDirs(guids: String*) =
-            guids.map { guid =>
-              coursierapi.shaded.coursier.jniutils.WindowsKnownFolders
-                .knownFolderPath("{" + guid + "}")
-            }.toArray
-        }
-      else
-        GetWinDirs.powerShellBased
-    ProjectDirectories.from("", "", "bloop", getWinDirs)
-  }
   private def createDirFor(filepath: String): AbsolutePath =
     AbsolutePath(Files.createDirectories(NioPaths.get(filepath)))
 
-  private lazy val bloopCacheDir: AbsolutePath = createDirFor(projectDirectories.cacheDir)
-  private lazy val bloopDataDir: AbsolutePath = createDirFor(projectDirectories.dataDir)
+  private lazy val bloopCacheDir: AbsolutePath = createDirFor(
+    bloop.io.internal.ProjDirHelper.cacheDir()
+  )
+  private lazy val bloopDataDir: AbsolutePath = createDirFor(
+    bloop.io.internal.ProjDirHelper.dataDir()
+  )
 
   lazy val daemonDir: AbsolutePath = {
     def defaultDir = {