diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0aa0e81..dc51188 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.1] - 2021-03-04
+### Changed
+ - Pin version of `openapiv3` dependency to `0.3.2`
+
 ## [0.2.0] - 2021-02-27
 ### Added
  - Support custom HTTP response headers
diff --git a/Cargo.toml b/Cargo.toml
index 0f4621c..08bf06d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -43,7 +43,7 @@ indexmap = { version = "1.3.2", optional = true }
 indoc = { version = "1.0", optional = true }
 jsonwebtoken = { version = "7.1.0", optional = true }
 once_cell = { version = "1.5", optional = true }
-openapiv3 = { version = "0.3.2", optional = true }
+openapiv3 = { version = "=0.3.2", optional = true }
 regex = { version = "1.4", optional = true }
 sha2 = { version = "0.9.3", optional = true }