diff --git a/.github/workflows/gotest.yml b/.github/workflows/gotest.yml
index 0c336e3..c8afcf6 100644
--- a/.github/workflows/gotest.yml
+++ b/.github/workflows/gotest.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [ '1.20', '1.21.x', '1.22.x' ]
+        go-version: [ '1.21.x', '1.22.x' '1.23.x' ]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/go.mod b/go.mod
index c66b43f..05ecaea 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/wandb/parallel
 
-go 1.21
+go 1.23.1
 
 require github.com/stretchr/testify v1.9.0