diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23191fd..e4f7964 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 0.5.1
+
+## What's Changed
+* fix: loosen collection constraint by @btrautmann in https://github.com/Betterment/sturdy_http/pull/16
+
+
+**Full Changelog**: https://github.com/Betterment/sturdy_http/compare/v0.5.0...v0.5.1
+
 ## 0.5.0
 
 ## What's Changed
diff --git a/pubspec.yaml b/pubspec.yaml
index e679e99..4b5d4eb 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: sturdy_http
 description: A strongly typed, event-based, reliable HTTP client that wraps `Dio`.
-version: 0.5.0
+version: 0.5.1
 homepage: https://github.com/Betterment/sturdy_http
 repository: https://github.com/Betterment/sturdy_http