diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 54a1960..eeae92b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,19 +9,24 @@ permissions:
 
 jobs:
   build_pack_android:
-    runs-on: ubuntu-latest
+    # Pinned: on ubuntu-26.04 (ubuntu-latest since Oct 2026) the android workload install fails with "Disk quota exceeded".
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: "10.0.x"
+          dotnet-version: "10.0.203"
       - uses: actions/setup-java@v4
         with:
           distribution: microsoft
           java-version: "21"
-      - uses: android-actions/setup-android@v3
+      - uses: android-actions/setup-android@v4
+        with:
+          # Pinned like the consuming app: the default 'tools' package no longer exists.
+          cmdline-tools-version: '12266719'
+          packages: 'platform-tools'
       - name: Install Android workload
-        run: dotnet workload install android
+        run: dotnet workload install android --version 10.0.203
       - name: Build pinned Core + Share wrapper
         run: bash src/Kapusch.TikTokApisForAndroidComponents/Native/Android/build.sh
       - name: Pack
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index df20a2c..751ff55 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -17,7 +17,8 @@ permissions:
 
 jobs:
   pack_and_publish:
-    runs-on: ubuntu-latest
+    # Pinned: on ubuntu-26.04 (ubuntu-latest since Oct 2026) the android workload install fails with "Disk quota exceeded".
+    runs-on: ubuntu-24.04
     permissions:
       contents: read
       packages: write
@@ -60,17 +61,21 @@ jobs:
 
       - uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: "10.0.x"
+          dotnet-version: "10.0.203"
 
       - uses: actions/setup-java@v4
         with:
           distribution: microsoft
           java-version: "21"
 
-      - uses: android-actions/setup-android@v3
+      - uses: android-actions/setup-android@v4
+        with:
+          # Pinned like the consuming app: the default 'tools' package no longer exists.
+          cmdline-tools-version: '12266719'
+          packages: 'platform-tools'
 
       - name: Install Android workload
-        run: dotnet workload install android
+        run: dotnet workload install android --version 10.0.203
 
       - name: Build pinned Core + Share wrapper
         run: bash src/Kapusch.TikTokApisForAndroidComponents/Native/Android/build.sh