diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d5d5651ff..247dbe68b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -131,6 +131,10 @@ jobs:
         # ensure our vendor directory matches up with our go modules
         run: |
           go mod vendor && git diff --exit-code || (echo "Unexpected change to vendor directory. Run 'go mod vendor' locally and commit the changes" && exit 1)
+      - name: Check go.mod file
+        # ensure our go.mod file is clean
+        run: |
+          go mod tidy && git diff --exit-code || (echo "go.mod file is not clean. Run 'go mod tidy' locally and commit the changes" && exit 1)
       - name: Check All Auto-Generated Files
         # ensure all our auto-generated files are up to date
         run: |
diff --git a/go.mod b/go.mod
index b082b968b..2126b6ab3 100644
--- a/go.mod
+++ b/go.mod
@@ -26,7 +26,6 @@ require (
 	github.com/mattn/go-runewidth v0.0.15
 	github.com/mgutz/str v1.2.0
 	github.com/mitchellh/go-ps v1.0.0
-	github.com/pmezard/go-difflib v1.0.0
 	github.com/sahilm/fuzzy v0.1.0
 	github.com/samber/lo v1.31.0
 	github.com/sanity-io/litter v1.5.2
@@ -63,6 +62,7 @@ require (
 	github.com/onsi/ginkgo v1.10.3 // indirect
 	github.com/onsi/gomega v1.7.1 // indirect
 	github.com/petermattis/goid v0.0.0-20180202154549-b0b1615b78e5 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/sergi/go-diff v1.1.0 // indirect
 	github.com/xanzy/ssh-agent v0.2.1 // indirect