diff --git a/cubeb-api/Cargo.toml b/cubeb-api/Cargo.toml
index abde039..8379699 100644
--- a/cubeb-api/Cargo.toml
+++ b/cubeb-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cubeb"
-version = "0.20.0"
+version = "0.21.0"
 authors = ["Dan Glastonbury <dglastonbury@mozilla.com>"]
 license = "ISC"
 readme = "README.md"
@@ -19,4 +19,4 @@ circle-ci = { repository = "mozilla/cubeb-rs" }
 gecko-in-tree = ["cubeb-core/gecko-in-tree"]
 
 [dependencies]
-cubeb-core = { path = "../cubeb-core", version = "0.20.0" }
+cubeb-core = { path = "../cubeb-core", version = "0.21.0" }
diff --git a/cubeb-backend/Cargo.toml b/cubeb-backend/Cargo.toml
index 5dbc7e8..8fa6670 100644
--- a/cubeb-backend/Cargo.toml
+++ b/cubeb-backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cubeb-backend"
-version = "0.20.0"
+version = "0.21.0"
 authors = ["Dan Glastonbury <dglastonbury@mozilla.com>"]
 license = "ISC"
 keywords = ["cubeb"]
@@ -18,4 +18,4 @@ circle-ci = { repository = "mozilla/cubeb-rs" }
 gecko-in-tree = ["cubeb-core/gecko-in-tree"]
 
 [dependencies]
-cubeb-core = { path = "../cubeb-core", version = "0.20.0" }
+cubeb-core = { path = "../cubeb-core", version = "0.21.0" }
diff --git a/cubeb-core/Cargo.toml b/cubeb-core/Cargo.toml
index 62684a9..13ca17c 100644
--- a/cubeb-core/Cargo.toml
+++ b/cubeb-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cubeb-core"
-version = "0.20.0"
+version = "0.21.0"
 authors = ["Dan Glastonbury <dglastonbury@mozilla.com>"]
 license = "ISC"
 keywords = ["cubeb"]
@@ -19,7 +19,7 @@ gecko-in-tree = ["cubeb-sys/gecko-in-tree"]
 
 [dependencies]
 bitflags = "1.2.0"
-cubeb-sys = { path = "../cubeb-sys", version = "0.20" }
+cubeb-sys = { path = "../cubeb-sys", version = "0.21" }
 
 [build-dependencies]
 cc = "1.1.30"
diff --git a/cubeb-sys/Cargo.toml b/cubeb-sys/Cargo.toml
index f1838c6..7b4bc58 100644
--- a/cubeb-sys/Cargo.toml
+++ b/cubeb-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cubeb-sys"
-version = "0.20.0"
+version = "0.21.0"
 authors = ["Dan Glastonbury <dglastonbury@mozilla.com>"]
 repository = "https://github.com/mozilla/cubeb-rs"
 license = "ISC"
diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index 0c28be4..be29de5 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "xtask"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 publish = false
 release = false