diff --git a/Cargo.toml b/Cargo.toml
index 287bd07..7c09dd1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "string_cache"
-version = "0.8.9"  # Also update README.md when making a semver-breaking change
+version = "0.9.0"  # Also update README.md when making a semver-breaking change
 authors = ["The Servo Project Developers"]
 description = "A string interning library for Rust, developed as part of the Servo project."
 license = "MIT OR Apache-2.0"
@@ -26,7 +26,7 @@ default = ["serde_support"]
 precomputed-hash = "0.1"
 serde = { version = "1", optional = true }
 malloc_size_of = { version = "0.1", default-features = false, optional = true }
-phf_shared = "0.11"
+phf_shared = "0.12"
 new_debug_unreachable = "1.0.2"
 parking_lot = "0.12"
 
diff --git a/README.md b/README.md
index fdf4c0a..429d1ec 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ In `Cargo.toml`:
 
 ```toml
 [dependencies]
-string_cache = "0.8"
+string_cache = "0.9"
 ```
 
 In `lib.rs`:
@@ -31,10 +31,10 @@ In `Cargo.toml`:
 build = "build.rs"
 
 [dependencies]
-string_cache = "0.8"
+string_cache = "0.9"
 
 [build-dependencies]
-string_cache_codegen = "0.5"
+string_cache_codegen = "0.6"
 ```
 
 In `build.rs`:
diff --git a/integration-tests/Cargo.toml b/integration-tests/Cargo.toml
index a0b047c..12c0ad0 100644
--- a/integration-tests/Cargo.toml
+++ b/integration-tests/Cargo.toml
@@ -16,11 +16,11 @@ test = true
 unstable = []
 
 [dependencies]
-string_cache = { version = "0.8", path = ".." }
+string_cache = { version = "0.9", path = ".." }
 
 [dev-dependencies]
 rand = "0.8"
-string_cache_codegen = { version = "0.5", path = "../string-cache-codegen" }
+string_cache_codegen = { version = "0.6", path = "../string-cache-codegen" }
 
 [build-dependencies]
-string_cache_codegen = { version = "0.5", path = "../string-cache-codegen" }
+string_cache_codegen = { version = "0.6", path = "../string-cache-codegen" }
diff --git a/src/lib.rs b/src/lib.rs
index 441cb4e..3cc29b1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -25,10 +25,10 @@
 //! In `Cargo.toml`:
 //! ```toml
 //! [dependencies]
-//! string_cache = "0.8"
+//! string_cache = "0.9"
 //!
 //! [dev-dependencies]
-//! string_cache_codegen = "0.5"
+//! string_cache_codegen = "0.6"
 //! ```
 //!
 //! In `build.rs`:
diff --git a/string-cache-codegen/Cargo.toml b/string-cache-codegen/Cargo.toml
index a9660bd..dddd6ab 100644
--- a/string-cache-codegen/Cargo.toml
+++ b/string-cache-codegen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "string_cache_codegen"
-version = "0.5.4"  # Also update ../README.md when making a semver-breaking change
+version = "0.6.0"  # Also update ../README.md when making a semver-breaking change
 authors = [ "The Servo Project Developers" ]
 description = "A codegen library for string-cache, developed as part of the Servo project."
 license = "MIT OR Apache-2.0"
@@ -13,7 +13,7 @@ name = "string_cache_codegen"
 path = "lib.rs"
 
 [dependencies]
-phf_generator = "0.11"
-phf_shared = "0.11"
+phf_generator = "0.12"
+phf_shared = "0.12"
 proc-macro2 = "1"
 quote = "1"
diff --git a/string-cache-codegen/lib.rs b/string-cache-codegen/lib.rs
index c703cf7..69ff612 100644
--- a/string-cache-codegen/lib.rs
+++ b/string-cache-codegen/lib.rs
@@ -19,10 +19,10 @@
 //! build = "build.rs"
 //!
 //! [dependencies]
-//! string_cache = "0.8"
+//! string_cache = "0.9"
 //!
 //! [build-dependencies]
-//! string_cache_codegen = "0.5"
+//! string_cache_codegen = "0.6"
 //! ```
 //!
 //! In `build.rs`:
@@ -183,8 +183,8 @@ impl AtomType {
 
     #[cfg(test)]
     /// Write generated code to destination [`Vec<u8>`] and return it as [`String`]
-    /// 
-    /// Used mostly for testing or displaying a value. 
+    ///
+    /// Used mostly for testing or displaying a value.
     pub fn write_to_string(&mut self, mut destination: Vec<u8>) -> io::Result<String>
     {
         destination.write_all(
@@ -347,4 +347,4 @@ fn test_iteration_order() {
         .write_to_string(Vec::new()).expect("write to string cache x2");
 
     assert_eq!(x1, x2);
-}
\ No newline at end of file
+}