diff --git a/.github/workflows/android_ci.yml b/.github/workflows/android_ci.yml
--- a/.github/workflows/android_ci.yml
+++ b/.github/workflows/android_ci.yml
@@ -36,9 +36,6 @@
         working-directory: ./scripts
         run: sudo ./install_protobuf.sh
 
-      - name: Install Yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/android_release.yml b/.github/workflows/android_release.yml
--- a/.github/workflows/android_release.yml
+++ b/.github/workflows/android_release.yml
@@ -30,9 +30,6 @@
         working-directory: ./scripts
         run: sudo ./install_protobuf.sh
 
-      - name: Install Yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall