diff --git a/.github/workflows/native-build.yml b/.github/workflows/native-build.yml
index 7b5ba843..e6e035c6 100644
--- a/.github/workflows/native-build.yml
+++ b/.github/workflows/native-build.yml
@@ -8,38 +8,19 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     
     steps:
       - uses: actions/checkout@v2
       
-      # Cache
-      - id: stack_cache_key
-        run: echo ::set-output name=key::$(md5sum stack.yaml.lock | awk '{print $1}')
-      
-      - uses: actions/cache@v2
-        with:
-          path: ~/.stack
-          key: ${{ matrix.os }}-${{ steps.stack_cache_key.outputs.key }}
-          
-      - id: cache_key
-        run: echo ::set-output name=key::$(git branch)
-        
-      - uses: actions/cache@v2
-        with:
-          path: |
-            ./.stack-work/dist
-            **/node_modules
-          key: ${{ matrix.os }}-${{ steps.cache_key.outputs.key }}
-      
-      # Nix
-      - uses: cachix/install-nix-action@v10
+      # Nix & Haskell
+      - uses: cachix/install-nix-action@v12
         with:
           nix_path: nixpkgs=channel:nixos-unstable
-      - uses: mstksg/get-package@v1
+      - uses: actions/setup-haskell@v1.1
         with:
-          apt-get: libgmp-dev
-      - uses: mstksg/setup-stack@v1
+          enable-stack: true
+          stack-version: latest
       
       # Tasks
       - run: nix-shell --run "just install-deps"
@@ -54,7 +35,7 @@ jobs:
       
   create-release:
     needs: build
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     
     outputs:
       RELEASE_UPLOAD_ID: ${{ steps.create_release.outputs.id }}