diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4a22aab8..3d7503eb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,10 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-22.04, windows-2019]
-        java: [8, 11]
-        exclude:
-          - os: windows-2019
-            java: 8
+        java: [11, 21]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c68d3ea9..3f164ec6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 8
+          java-version: 11
       - uses: olafurpg/setup-gpg@v3
       - name: Publish ${{ github.ref }}
         run: sbt ci-release