diff --git a/.github/workflows/render-puml.yaml b/.github/workflows/render-puml.yaml
index 23e8621..e320d42 100644
--- a/.github/workflows/render-puml.yaml
+++ b/.github/workflows/render-puml.yaml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Generate PUML diagrams
-        uses: uclahs-cds/tool-PlantUML-action@v1.0.0
+        uses: uclahs-cds/tool-PlantUML-action@v1.0.1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           ghcr-username: ${{ github.actor }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc7ad8b..135a650 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ## [Unreleased]
 ### Changed
 - Replace workflow diagram with PlantUML version
+- Update PlantUML action to v1.0.1
 
 ---