diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1a79129..78b5c12 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@v6
       - run: chmod +x gradlew
       - name: kmpworker checks (excludes platform-specific tests)
         run: >-
@@ -81,7 +81,7 @@ jobs:
         run: sudo xcode-select -s "/Applications/Xcode_${{ matrix.xcode }}.app"
       - name: List simulator runtimes (diagnostic)
         run: xcrun simctl list runtimes
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@v6
       - run: chmod +x gradlew
       - name: iosSimulatorArm64Test
         env:
@@ -111,7 +111,7 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@v6
       - run: chmod +x gradlew
       - name: testDebugUnitTest
         run: ./gradlew :kmpworker:testDebugUnitTest :kmpworker-http:testDebugUnitTest
@@ -150,7 +150,7 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@v6
       - run: chmod +x gradlew
       - name: Enable KVM (Linux only — no-op on macOS)
         if: runner.os == 'Linux'
@@ -192,7 +192,7 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@v6
       - run: chmod +x gradlew
       - name: Android demo APK
         run: ./gradlew :composeApp:assembleDebug
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 9e8893d..4ab963b 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -39,7 +39,7 @@ jobs:
         with:
           java-version: '17'
           distribution: 'temurin'
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@v6
       - run: chmod +x gradlew
 
       - name: Initialize CodeQL
diff --git a/.github/workflows/dependency-submission.yml b/.github/workflows/dependency-submission.yml
index 79da148..5a1e343 100644
--- a/.github/workflows/dependency-submission.yml
+++ b/.github/workflows/dependency-submission.yml
@@ -25,7 +25,7 @@ jobs:
       run: chmod +x gradlew
 
     - name: Generate and submit dependency graph
-      uses: gradle/actions/dependency-submission@v4
+      uses: gradle/actions/dependency-submission@v6
       with:
         # Skip instrumented test configurations that cause AndroidX issues
         additional-arguments: '-Pandroid.useAndroidX=true -x test'