diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d9e8c1f..4a0b849 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,7 +4,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.20.x]
+        go-version: [1.21.x]
     runs-on: ubuntu-latest
     steps:
     - uses: actions/setup-go@v3
diff --git a/go.sum b/go.sum
index e910d24..931572c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,4 @@
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/1f349/cache v0.0.1 h1:Aa2TmfewUDPCLLKmV/gSt0H6Wr2bcKu08zD5m+Im0K4=
-github.com/1f349/cache v0.0.1/go.mod h1:LibAMy13dF0KO1fQA9aEjZPBCB6Y4b5kKYEQJUqc2rQ=
 github.com/1f349/cache v0.0.2 h1:27QD6zPd9xYyvh9V1qqWq+EAt5+N+qvyGWKfnjMrhP8=
 github.com/1f349/cache v0.0.2/go.mod h1:LibAMy13dF0KO1fQA9aEjZPBCB6Y4b5kKYEQJUqc2rQ=
 github.com/1f349/twofactor v1.0.4 h1:kN4EEGFlKRa7fGrxS+FpgwJI+tllES6YzXqCqurk4Uk=