diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc0fa16..a01c727 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.20.0 (December 20, 2023)
+# 0.20.0 (Unreleased)
 
 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))