diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0024a26..ed04421 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,6 +15,10 @@ jobs:
         with:
           fetch-depth: 0 # Changelog を正しく動作させるために必要
 
+      - name: Install GoReleaser and mockgen
+        run: go get github.com/golang/mock/mockgen
+        env:
+          GO111MODULE: on
       # Go をセットアップ
       - uses: actions/setup-go@v3
         with: