diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index fc7ec1c..07d6620 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -266,7 +266,7 @@ jobs:
           to: ${{ github.ref_name }}
           version-name: ${{ github.ref_name }}
           provider: anthropic
-          model: claude-opus-5
+          model: claude-opus-5-5
           api-key: ${{ secrets.ANTHROPIC_API_KEY }}
           output-file: RELEASE_NOTES.md
           binary-path: ./artifacts/git-iris-linux-amd64/git-iris
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3775dc9..5dc5ade 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -133,7 +133,7 @@ jobs:
           output-file: CHANGELOG.md
           update-file: "true"
           provider: anthropic
-          model: claude-opus-5
+          model: claude-opus-5-5
           api-key: ${{ secrets.ANTHROPIC_API_KEY }}
           binary-path: ./target/release/git-iris
 
@@ -148,7 +148,7 @@ jobs:
           version-name: ${{ steps.version.outputs.version }}
           output-file: RELEASE_NOTES.md
           provider: anthropic
-          model: claude-opus-5
+          model: claude-opus-5-5
           api-key: ${{ secrets.ANTHROPIC_API_KEY }}
           binary-path: ./target/release/git-iris