diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2f35e32c..ce25cf46 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,12 +20,17 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v4
 
-
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 6.0.x
 
+    - name: Install Mono
+      if: matrix.framework-version == 'net462'
+      run: |
+        sudo apt update
+        sudo apt install -y mono-complete
+
     - name: Install dependencies
       run: dotnet restore FirebaseAdmin/FirebaseAdmin.sln
 
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 9db67570..7fe0aa38 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -44,6 +44,11 @@ jobs:
       with:
         dotnet-version: 6.0.x
 
+    - name: Install Mono
+      run: |
+        sudo apt update
+        sudo apt install -y mono-complete
+
     - name: Install dependencies
       run: dotnet restore FirebaseAdmin/FirebaseAdmin.sln
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6bc5578e..12d6933a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -56,6 +56,11 @@ jobs:
       with:
         dotnet-version: 6.0.x
 
+    - name: Install Mono
+      run: |
+        sudo apt update
+        sudo apt install -y mono-complete
+
     - name: Install dependencies
       run: dotnet restore FirebaseAdmin/FirebaseAdmin.sln