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
 
diff --git a/.github/workflows/eslint_flow_jest.yml b/.github/workflows/eslint_flow_jest.yml
--- a/.github/workflows/eslint_flow_jest.yml
+++ b/.github/workflows/eslint_flow_jest.yml
@@ -16,9 +16,6 @@
         working-directory: ./scripts
         run: sudo ./install_protobuf.sh
 
-      - name: npm install -g yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/ios_ci.yml b/.github/workflows/ios_ci.yml
--- a/.github/workflows/ios_ci.yml
+++ b/.github/workflows/ios_ci.yml
@@ -44,9 +44,6 @@
       - name: brew install protobuf
         run: brew install protobuf
 
-      - name: npm install -g yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/ios_release.yml b/.github/workflows/ios_release.yml
--- a/.github/workflows/ios_release.yml
+++ b/.github/workflows/ios_release.yml
@@ -39,9 +39,6 @@
       - name: brew install protobuf
         run: brew install protobuf
 
-      - name: npm install -g yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/jsi_codegen.yml b/.github/workflows/jsi_codegen.yml
--- a/.github/workflows/jsi_codegen.yml
+++ b/.github/workflows/jsi_codegen.yml
@@ -16,9 +16,6 @@
         working-directory: ./scripts
         run: sudo ./install_protobuf.sh
 
-      - name: npm install -g yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/macos_ci.yml b/.github/workflows/macos_ci.yml
--- a/.github/workflows/macos_ci.yml
+++ b/.github/workflows/macos_ci.yml
@@ -50,9 +50,6 @@
         working-directory: ./scripts
         run: sudo ./install_protobuf.sh
 
-      - name: npm install -g yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/remove_harbormaster_tags.yml b/.github/workflows/remove_harbormaster_tags.yml
--- a/.github/workflows/remove_harbormaster_tags.yml
+++ b/.github/workflows/remove_harbormaster_tags.yml
@@ -15,9 +15,6 @@
         working-directory: ./scripts
         run: sudo ./install_protobuf.sh
 
-      - name: npm install -g yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall
 
diff --git a/.github/workflows/windows_ci.yml b/.github/workflows/windows_ci.yml
--- a/.github/workflows/windows_ci.yml
+++ b/.github/workflows/windows_ci.yml
@@ -19,9 +19,6 @@
     steps:
       - uses: actions/checkout@v3
 
-      - name: Install Yarn
-        run: npm install -g yarn
-
       - name: yarn ci-cleaninstall
         run: yarn ci-cleaninstall