diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 44b0cc3..75e5708 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,34 +23,26 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.12.18, 2.13.12]
-        java: [temurin@11]
+        java: [zulu@8]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
-      - name: Setup Java (temurin@11)
-        if: matrix.java == 'temurin@11'
-        uses: actions/setup-java@v2
+      - name: Setup Java (zulu@8)
+        if: matrix.java == 'zulu@8'
+        uses: actions/setup-java@v5
         with:
-          distribution: temurin
-          java-version: 11
+          distribution: zulu
+          java-version: 8
+          cache: sbt
 
-      - name: Cache sbt
-        uses: actions/cache@v2
-        with:
-          path: |
-            ~/.sbt
-            ~/.ivy2/cache
-            ~/.coursier/cache/v1
-            ~/.cache/coursier/v1
-            ~/AppData/Local/Coursier/Cache/v1
-            ~/Library/Caches/Coursier/v1
-          key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
+      - name: Setup sbt
+        uses: sbt/setup-sbt@v1
 
       - name: Check that workflows are up to date
-        run: sbt ++${{ matrix.scala }} githubWorkflowCheck
+        run: sbt '++ ${{ matrix.scala }}' githubWorkflowCheck
 
-      - run: sbt ++${{ matrix.scala }} test
+      - run: sbt '++ ${{ matrix.scala }}' test
diff --git a/.github/workflows/clean.yml b/.github/workflows/clean.yml
index 547aaa4..4bb28c8 100644
--- a/.github/workflows/clean.yml
+++ b/.github/workflows/clean.yml
@@ -9,6 +9,9 @@ name: Clean
 
 on: push
 
+permissions:
+  actions: write
+
 jobs:
   delete-artifacts:
     name: Delete Artifacts
@@ -17,6 +20,7 @@ jobs:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Delete artifacts
+        shell: bash {0}
         run: |
           # Customize those three lines with your repository and credentials:
           REPO=${GITHUB_API_URL}/repos/${{ github.repository }}
@@ -25,7 +29,7 @@ jobs:
           ghapi() { curl --silent --location --user _:$GITHUB_TOKEN "$@"; }
 
           # A temporary file which receives HTTP response headers.
-          TMPFILE=/tmp/tmp.$$
+          TMPFILE=$(mktemp)
 
           # An associative array, key: artifact name, value: number of artifacts of that name.
           declare -A ARTCOUNT
diff --git a/project/plugins.sbt b/project/plugins.sbt
index ab75c56..1a55e1b 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1 +1 @@
-addSbtPlugin("com.codecommit" % "sbt-github-actions" % "0.14.2")
+addSbtPlugin("com.github.sbt" % "sbt-github-actions" % "0.29.0")