diff --git a/CHANGELOG.md b/CHANGELOG.md
index a01c727..dc0fa16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.20.0 (Unreleased)
+# 0.20.0 (December 20, 2023)
 
 ENHANCEMENTS:
  - Add `JSONNumber` option to `Show` to enable `json.Number` representation of numerical values in returned `tfjson.Plan` and `tfjson.State` values ([#427](https://github.com/hashicorp/terraform-exec/pull/427))
diff --git a/internal/version/version.go b/internal/version/version.go
index e5328d9..90b6688 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -3,7 +3,7 @@
 
 package version
 
-const version = "0.19.0"
+const version = "0.20.0"
 
 // 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.