diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b8ba2ba..8fe9eab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -105,7 +105,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.17]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
@@ -164,36 +163,18 @@ jobs:
           (echo "$PGP_PASSPHRASE"; echo; echo) | gpg --command-fd 0 --pinentry-mode loopback --change-passphrase $(gpg --list-secret-keys --with-colons 2> /dev/null | grep '^sec:' | cut --delimiter ':' --fields 5 | tail -n 1)
 
       - name: Publish
-        run: sbt '++ ${{ matrix.scala }}' tlCiRelease
+        run: sbt tlCiRelease
 
   validate-steward:
     name: Validate Steward Config
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.6]
-        java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (fast)
         uses: actions/checkout@v3
 
-      - name: Download Java (temurin@17)
-        id: download-java-temurin-17
-        if: matrix.java == 'temurin@17'
-        uses: typelevel/download-java@v2
-        with:
-          distribution: temurin
-          java-version: 17
-
-      - name: Setup Java (temurin@17)
-        if: matrix.java == 'temurin@17'
-        uses: actions/setup-java@v3
-        with:
-          distribution: jdkfile
-          java-version: 17
-          jdkFile: ${{ steps.download-java-temurin-17.outputs.jdkFile }}
-
       - uses: coursier/setup-action@v1
         with:
           apps: scala-steward
@@ -205,7 +186,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.17]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
@@ -243,7 +223,7 @@ jobs:
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
       - name: Generate site
-        run: sbt '++ ${{ matrix.scala }}' docs/tlSite
+        run: sbt docs/tlSite
 
       - name: Publish site
         if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 15a9b7a..b4f0ade 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,2 +1,2 @@
-addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.4.20")
-addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % "0.4.20")
+addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.4.21")
+addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % "0.4.21")