diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3fc82f9d..ac253742 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,7 +42,7 @@ jobs:
       - name: Setup Java (temurin@8)
         id: setup-java-temurin-8
         if: matrix.java == 'temurin@8'
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: temurin
           java-version: 8
@@ -88,7 +88,7 @@ jobs:
 
       - name: Upload target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}-${{ matrix.project }}
           path: targets.tar
@@ -111,7 +111,7 @@ jobs:
       - name: Setup Java (temurin@8)
         id: setup-java-temurin-8
         if: matrix.java == 'temurin@8'
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: temurin
           java-version: 8
@@ -122,7 +122,7 @@ jobs:
         run: sbt +update
 
       - name: Download target directories (2.12, rootJS)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.12-rootJS
 
@@ -132,7 +132,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.12, rootJVM)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.12-rootJVM
 
@@ -142,7 +142,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.12, rootNative)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.12-rootNative
 
@@ -152,7 +152,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3, rootJS)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootJS
 
@@ -162,7 +162,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3, rootJVM)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootJVM
 
@@ -172,7 +172,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (3, rootNative)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-3-rootNative
 
@@ -182,7 +182,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13, rootJS)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootJS
 
@@ -192,7 +192,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13, rootJVM)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootJVM
 
@@ -202,7 +202,7 @@ jobs:
           rm targets.tar
 
       - name: Download target directories (2.13, rootNative)
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-2.13-rootNative
 
@@ -252,7 +252,7 @@ jobs:
       - name: Setup Java (temurin@8)
         id: setup-java-temurin-8
         if: matrix.java == 'temurin@8'
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: temurin
           java-version: 8
@@ -273,7 +273,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        java: [temurin@8]
+        java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -284,7 +284,7 @@ jobs:
       - name: Setup Java (temurin@8)
         id: setup-java-temurin-8
         if: matrix.java == 'temurin@8'
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: temurin
           java-version: 8
@@ -294,6 +294,19 @@ jobs:
         if: matrix.java == 'temurin@8' && steps.setup-java-temurin-8.outputs.cache-hit == 'false'
         run: sbt +update
 
+      - name: Setup Java (temurin@11)
+        id: setup-java-temurin-11
+        if: matrix.java == 'temurin@11'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 11
+          cache: sbt
+
+      - name: sbt update
+        if: matrix.java == 'temurin@11' && steps.setup-java-temurin-11.outputs.cache-hit == 'false'
+        run: sbt +update
+
       - name: Generate site
         run: sbt docs/tlSite
 
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 4c4cbcb8..853951ab 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -2,6 +2,6 @@ addSbtPlugin("org.scala-js"       % "sbt-scalajs"                   % "1.14.0")
 addSbtPlugin("org.scala-native"   % "sbt-scala-native"              % "0.4.16")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh"                       % "0.4.6")
-val sbtTypelevelVersion = "0.6.1"
+val sbtTypelevelVersion = "0.6.5"
 addSbtPlugin("org.typelevel" % "sbt-typelevel"      % sbtTypelevelVersion)
 addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % sbtTypelevelVersion)