diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c15ad7d..d3158d9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -228,7 +228,7 @@ jobs:
     - name: "Check: go mod tidy doesn't modify files"
       if: always()
       run: |
-        go mod tidy
+        go mod tidy -compat=1.17
         TOUCHED=$(git status --porcelain --ignored)
         if ! test -z "$TOUCHED"; then
           echo "go mod tidy was not clean, please update:"
diff --git a/go.sum b/go.sum
index 243f44a..c9b4046 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,4 @@
 github.com/jonboulle/clockwork v0.3.0 h1:9BSCMi8C+0qdApAp4auwX0RkLGUjs956h0EkuQymUhg=
-github.com/jonboulle/clockwork v0.3.0/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
 periph.io/x/conn/v3 v3.7.0 h1:f1EXLn4pkf7AEWwkol2gilCNZ0ElY+bxS4WE2PQXfrA=
 periph.io/x/conn/v3 v3.7.0/go.mod h1:ypY7UVxgDbP9PJGwFSVelRRagxyXYfttVh7hJZUHEhg=
 periph.io/x/d2xx v0.1.0 h1:aR+hMkz57YbQHR+Rji4jHH43YLTITRZUr2HjhqCYa7k=