diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 71520d2c..f25a78d0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,10 +10,10 @@ jobs:
   go_install:
     runs-on: ubuntu-latest
     steps:
-      - uses: rlespinasse/github-slug-action@v4
+      - uses: rlespinasse/github-slug-action@v4.4.1
       - uses: actions/setup-go@v4
         with:
-          go-version: ^1.21
+          go-version: ^1.20
       - run: cd /tmp && go install github.com/Antonboom/testifylint@${{ env.GITHUB_REF_NAME }} && testifylint -h
 
   lint:
diff --git a/analyzer/testdata/src/go.mod b/analyzer/testdata/src/go.mod
index d44e5f96..6e5b2ff0 100644
--- a/analyzer/testdata/src/go.mod
+++ b/analyzer/testdata/src/go.mod
@@ -1,6 +1,6 @@
 module testdata
 
-go 1.21
+go 1.20
 
 require (
 	github.com/ghetzel/testify v1.4.1