diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1f449ed..2098712 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,22 +23,25 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.12.18, 2.13.12, 3.3.1]
-        java: [temurin@8]
+        java: [zulu@8]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
-      - name: Setup Java (temurin@8)
-        if: matrix.java == 'temurin@8'
-        uses: actions/setup-java@v3
+      - name: Setup Java (zulu@8)
+        if: matrix.java == 'zulu@8'
+        uses: actions/setup-java@v5
         with:
-          distribution: temurin
+          distribution: zulu
           java-version: 8
           cache: sbt
 
+      - name: Setup sbt
+        uses: sbt/setup-sbt@v1
+
       - name: Check that workflows are up to date
         run: sbt '++ ${{ matrix.scala }}' githubWorkflowCheck
 
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 726ed6b..cf20511 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -2,4 +2,4 @@ addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.10.0")
 addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.9.2")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.1")
 addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.10")
-addSbtPlugin("com.github.sbt" % "sbt-github-actions" % "0.15.0")
\ No newline at end of file
+addSbtPlugin("com.github.sbt" % "sbt-github-actions" % "0.28.0")
\ No newline at end of file