diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6429752..9709a72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## Version 0.5.1
+
 - `PhpException` no longer requires a lifetime [#80].
 - Added `PhpException` and `PhpResult` to prelude [#80].
 - Fixed `ZendString` missing last character [#82].
diff --git a/Cargo.toml b/Cargo.toml
index 1a496d7..14bbd2f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ repository = "https://github.com/davidcole1340/ext-php-rs"
 homepage = "https://github.com/davidcole1340/ext-php-rs"
 license = "MIT OR Apache-2.0"
 keywords = ["php", "ffi", "zend"]
-version = "0.5.0"
+version = "0.5.1"
 authors = ["David Cole <david.cole1340@gmail.com>"]
 edition = "2018"
 categories = ["api-bindings"]
@@ -13,7 +13,7 @@ categories = ["api-bindings"]
 [dependencies]
 bitflags = "1.2.1"
 parking_lot = "0.11.2"
-ext-php-rs-derive = { version = "=0.5.0", path = "./ext-php-rs-derive" }
+ext-php-rs-derive = { version = "=0.5.1", path = "./ext-php-rs-derive" }
 
 [build-dependencies]
 bindgen = { version = "0.59" }
diff --git a/ext-php-rs-derive/Cargo.toml b/ext-php-rs-derive/Cargo.toml
index f966032..17650f2 100644
--- a/ext-php-rs-derive/Cargo.toml
+++ b/ext-php-rs-derive/Cargo.toml
@@ -4,7 +4,7 @@ description = "Derive macros for ext-php-rs."
 repository = "https://github.com/davidcole1340/ext-php-rs"
 homepage = "https://github.com/davidcole1340/ext-php-rs"
 license = "MIT OR Apache-2.0"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["David Cole <david.cole1340@gmail.com>"]
 edition = "2018"