diff --git a/.github/workflows/mononoke-integration_linux.yml b/.github/workflows/mononoke-integration_linux.yml
index 665c9c3071deb..c1485702ba895 100644
--- a/.github/workflows/mononoke-integration_linux.yml
+++ b/.github/workflows/mononoke-integration_linux.yml
@@ -22,7 +22,7 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: stable
+        toolchain: 1.44.0
         default: true
         profile: minimal
     - name: Install Python 2.7
@@ -50,6 +50,7 @@ jobs:
     - name: Build mononoke dependencies
       run: >-
         python3 build/fbcode_builder/getdeps.py build
+        --allow-system-packages
         --scratch-path /tmp/build
         --only-deps
         --src-dir=.
@@ -57,6 +58,7 @@ jobs:
     - name: Build mononoke
       run: >-
         python3 build/fbcode_builder/getdeps.py build
+        --allow-system-packages
         --scratch-path /tmp/build
         --no-deps
         --src-dir=.
diff --git a/.github/workflows/mononoke-integration_mac.yml b/.github/workflows/mononoke-integration_mac.yml
index b9df0ca3e6b93..7dcbf6fc110ee 100644
--- a/.github/workflows/mononoke-integration_mac.yml
+++ b/.github/workflows/mononoke-integration_mac.yml
@@ -20,7 +20,7 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: stable
+        toolchain: 1.44.0
         default: true
         profile: minimal
     - name: Install Python 2.7
@@ -48,6 +48,7 @@ jobs:
     - name: Build mononoke dependencies
       run: >-
         python3 build/fbcode_builder/getdeps.py build
+        --allow-system-packages
         --scratch-path /tmp/build
         --only-deps
         --src-dir=.
@@ -55,6 +56,7 @@ jobs:
     - name: Build mononoke
       run: >-
         python3 build/fbcode_builder/getdeps.py build
+        --allow-system-packages
         --scratch-path /tmp/build
         --no-deps
         --src-dir=.
diff --git a/.github/workflows/mononoke_linux.yml b/.github/workflows/mononoke_linux.yml
index d2ca2c197736e..7741833d84edf 100644
--- a/.github/workflows/mononoke_linux.yml
+++ b/.github/workflows/mononoke_linux.yml
@@ -22,17 +22,19 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: stable
+        toolchain: 1.44.0
         default: true
         profile: minimal
+    - name: Install system deps
+      run: sudo python3 build/fbcode_builder/getdeps.py --allow-system-packages install-system-deps --recursive mononoke
     - name: Build dependencies
-      run: python3 build/fbcode_builder/getdeps.py build --only-deps --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py build --allow-system-packages --only-deps --src-dir=. mononoke
     - name: Build mononoke
-      run: python3 build/fbcode_builder/getdeps.py build --no-deps --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py build --allow-system-packages --no-deps --src-dir=. mononoke
     - name: Check space
       run: df -h
     - name: Test mononoke
-      run: python3 build/fbcode_builder/getdeps.py test --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py test --allow-system-packages --src-dir=. mononoke
     - name: Check space
       run: df -h
     - name: Install Rust Beta
@@ -42,7 +44,7 @@ jobs:
         default: true
         profile: minimal
     - name: Test mononoke with beta toolchain
-      run: python3 build/fbcode_builder/getdeps.py test --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py test --allow-system-packages --src-dir=. mononoke
       continue-on-error: true
     - name: Install Rust Nightly
       uses: actions-rs/toolchain@v1
@@ -51,7 +53,7 @@ jobs:
         default: true
         profile: minimal
     - name: Test mononoke with nightly toolchain
-      run: python3 build/fbcode_builder/getdeps.py test --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py test --allow-system-packages --src-dir=. mononoke
       continue-on-error: true
     - name: Check space
       run: df -h
diff --git a/.github/workflows/mononoke_mac.yml b/.github/workflows/mononoke_mac.yml
index 7e2994aa81b9b..5780e3d784d28 100644
--- a/.github/workflows/mononoke_mac.yml
+++ b/.github/workflows/mononoke_mac.yml
@@ -20,17 +20,20 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: stable
+        toolchain: 1.44.0
         default: true
         profile: minimal
+    - name: Install system deps
+      run: sudo python3 build/fbcode_builder/getdeps.py --allow-system-packages install-system-deps --recursive monono
+ke
     - name: Build dependencies
-      run: python3 build/fbcode_builder/getdeps.py build --only-deps --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py build --allow-system-packages --only-deps --src-dir=. mononoke
     - name: Build mononoke
-      run: python3 build/fbcode_builder/getdeps.py build --no-deps --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py build --allow-system-packages --no-deps --src-dir=. mononoke
     - name: Check space
       run: df -h
     - name: Test mononoke
-      run: python3 build/fbcode_builder/getdeps.py test --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py test --allow-system-packages --src-dir=. mononoke
     - name: Check space
       run: df -h
     - name: Install Rust Beta
@@ -40,7 +43,7 @@ jobs:
         default: true
         profile: minimal
     - name: Test mononoke with beta toolchain
-      run: python3 build/fbcode_builder/getdeps.py test --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py test --allow-system-packages --src-dir=. mononoke
       continue-on-error: true
     - name: Install Rust Nightly
       uses: actions-rs/toolchain@v1
@@ -49,7 +52,7 @@ jobs:
         default: true
         profile: minimal
     - name: Test mononoke with nightly toolchain
-      run: python3 build/fbcode_builder/getdeps.py test --src-dir=. mononoke
+      run: python3 build/fbcode_builder/getdeps.py test --allow-system-packages --src-dir=. mononoke
       continue-on-error: true
     - name: Check space
       run: df -h