diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef14d1b..28d954e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 FEATURES:
  - Add `ProtocolVersion` to `ReattachConfig` struct, enabling provider protocol v6 support in reattach mode, provided that Terraform and the provider plugin are both using go-plugin v1.4.1 or later. This change is backwards-compatible, as zero values for this field are interpreted as protocol v5. [GH-182]
  - Introduce `tfexec.Get()` for downloading modules [GH-176]
+ - Introduce `tfexec.Upgrade013()` [GH-178]
 
 # 0.13.3 (April 23, 2021)