diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2df9f11..af79d53 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: ["1.20", "1.21"]
+        go-version: ["1.21"]
         arch: [ 386, amd64 ]
     runs-on: ubuntu-latest
     name: Test (${{matrix.arch}} go v${{ matrix.go-version }})
@@ -32,7 +32,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        tag: ["1.20-alpine3.19", "1.21-alpine3.19"]
+        tag: [ "1.21-alpine3.19"]
     runs-on: ubuntu-latest
     name: Test alpine (${{ matrix.tag }})
     container: