diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 7e8f9c9..db85aa3 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build
     strategy:
       matrix:
-        goVer: ["1.12.x", "1.17.x"]
+        goVer: ["1.13.x", "1.21.x"]
         platform: [ubuntu-latest]
     runs-on: ${{ matrix.platform }}
     steps:
diff --git a/go.mod b/go.mod
index 7a464c6..afed783 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/cactus/go-misc
 
-go 1.12
+go 1.13
 
 require (
 	github.com/google/go-cmp v0.6.0 // indirect