diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6f565c..033f906 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.21.0 (Unreleased)
+# 0.21.0 (May 17, 2024)
 
 ENHANCEMENTS:
 - tfexec: Add `-allow-deferral` to `(Terraform).Apply()` and `(Terraform).Plan()` methods ([#447](https://github.com/hashicorp/terraform-exec/pull/447))
diff --git a/internal/version/version.go b/internal/version/version.go
index 90b6688..235d561 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -3,7 +3,7 @@
 
 package version
 
-const version = "0.20.0"
+const version = "0.21.0"
 
 // ModuleVersion returns the current version of the github.com/hashicorp/terraform-exec Go module.
 // This is a function to allow for future possible enhancement using debug.BuildInfo.