diff --git a/Cargo.toml b/Cargo.toml
index c950d2e4a..5e6fe2719 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cxx"
-version = "0.3.8" # remember to update html_root_url
+version = "0.3.9" # remember to update html_root_url
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 links = "cxxbridge03"
@@ -20,15 +20,15 @@ default = ["cxxbridge-flags/default"] # c++11
 "c++20" = ["cxxbridge-flags/c++20"]
 
 [dependencies]
-cxxbridge-macro = { version = "=0.3.8", path = "macro" }
+cxxbridge-macro = { version = "=0.3.9", path = "macro" }
 link-cplusplus = "1.0"
 
 [build-dependencies]
 cc = "1.0.49"
-cxxbridge-flags = { version = "=0.3.8", path = "flags", default-features = false }
+cxxbridge-flags = { version = "=0.3.9", path = "flags", default-features = false }
 
 [dev-dependencies]
-cxx-build = { version = "=0.3.8", path = "gen/build" }
+cxx-build = { version = "=0.3.9", path = "gen/build" }
 cxx-test-suite = { version = "0", path = "tests/ffi" }
 rustversion = "1.0"
 trybuild = { version = "1.0.33", features = ["diff"] }
diff --git a/flags/Cargo.toml b/flags/Cargo.toml
index 061237aa7..5bff81917 100644
--- a/flags/Cargo.toml
+++ b/flags/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cxxbridge-flags"
-version = "0.3.8"
+version = "0.3.9"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
diff --git a/gen/build/Cargo.toml b/gen/build/Cargo.toml
index 2e536f7df..eed528174 100644
--- a/gen/build/Cargo.toml
+++ b/gen/build/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cxx-build"
-version = "0.3.8"
+version = "0.3.9"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
diff --git a/gen/cmd/Cargo.toml b/gen/cmd/Cargo.toml
index a49e22f6c..68ec3ec94 100644
--- a/gen/cmd/Cargo.toml
+++ b/gen/cmd/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cxxbridge-cmd"
-version = "0.3.8"
+version = "0.3.9"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
diff --git a/macro/Cargo.toml b/macro/Cargo.toml
index aabd4d1e2..b273229b6 100644
--- a/macro/Cargo.toml
+++ b/macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cxxbridge-macro"
-version = "0.3.8"
+version = "0.3.9"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
diff --git a/src/lib.rs b/src/lib.rs
index 94a903745..bbd79f303 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -348,7 +348,7 @@
 //!
 //! [https://github.com/dtolnay/cxx]: https://github.com/dtolnay/cxx
 
-#![doc(html_root_url = "https://docs.rs/cxx/0.3.8")]
+#![doc(html_root_url = "https://docs.rs/cxx/0.3.9")]
 #![deny(improper_ctypes)]
 #![allow(non_camel_case_types)]
 #![allow(
diff --git a/third-party/Cargo.lock b/third-party/Cargo.lock
index 268c9f450..1f3e760c1 100644
--- a/third-party/Cargo.lock
+++ b/third-party/Cargo.lock
@@ -59,7 +59,7 @@ dependencies = [
 
 [[package]]
 name = "cxx"
-version = "0.3.8"
+version = "0.3.9"
 dependencies = [
  "cc",
  "cxx-build",
@@ -73,7 +73,7 @@ dependencies = [
 
 [[package]]
 name = "cxx-build"
-version = "0.3.8"
+version = "0.3.9"
 dependencies = [
  "cc",
  "codespan-reporting",
@@ -105,7 +105,7 @@ dependencies = [
 
 [[package]]
 name = "cxxbridge-cmd"
-version = "0.3.8"
+version = "0.3.9"
 dependencies = [
  "clap",
  "codespan-reporting",
@@ -124,11 +124,11 @@ dependencies = [
 
 [[package]]
 name = "cxxbridge-flags"
-version = "0.3.8"
+version = "0.3.9"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "0.3.8"
+version = "0.3.9"
 dependencies = [
  "cxx",
  "proc-macro2",