diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b2044db..47a6a71 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,29 +2,30 @@
 
 name: CI
 
-# Controls when the action will run.
+# Controls when the action will run. 
 on:
+  # Triggers the workflow on push or pull request events but only for the master branch
   push:
+    branches: [ master ]
   pull_request:
-    branches: [master]
-  schedule:
-    - cron: '0 0 * * 1'
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
-  test_stable:
+  test_devel:
     runs-on: ubuntu-latest
     strategy:
       matrix:
         firefox: [ '73.0' ]
         include:
-          - nim-version: '1.6.0'
+          - nim-version: 'stable'
             cache-key: 'stable'
     steps:
       - uses: actions/checkout@v2
-      - name: Checkout submodules
-        run: git submodule update --init --recursive
-
+      
       - name: Setup firefox
         uses: browser-actions/setup-firefox@latest
         with:
@@ -34,39 +35,53 @@ jobs:
         id: get-date
         run: echo "::set-output name=date::$(date "+%Y-%m-%d")"
         shell: bash
-
+        
       - name: Cache choosenim
         uses: actions/cache@v2
         with:
           path: ~/.choosenim
           key: ${{ runner.os }}-choosenim-${{ matrix.cache-key }}
-
+        
       - name: Cache nimble
         uses: actions/cache@v2
         with:
           path: ~/.nimble
           key: ${{ runner.os }}-nimble-${{ hashFiles('*.nimble') }}
 
+      - uses: jiro4989/setup-nim-action@v1
+        with:
+          nim-version: "${{ matrix.nim-version }}"
+
       - name: Install geckodriver
         run: |
           sudo apt-get -qq update
-          sudo apt-get install autoconf libtool libsass-dev
+          sudo apt-get install autoconf libtool
+          git clone -b 3.5.4 https://github.com/sass/libsass.git
+          cd libsass
+          autoreconf --force --install
+          ./configure \
+            --disable-tests \
+            --disable-static \
+            --enable-shared \
+            --prefix=/usr
+          sudo make -j5 install
+          cd ..
+
           wget https://github.com/mozilla/geckodriver/releases/download/v0.29.1/geckodriver-v0.29.1-linux64.tar.gz
-          mkdir geckodriver
           tar -xzf geckodriver-v0.29.1-linux64.tar.gz -C geckodriver
           export PATH=$PATH:$PWD/geckodriver
-
+          
       - name: Install choosenim
         run: |
-          export CHOOSENIM_CHOOSE_VERSION="${{ matrix.nim-version }}"
+          export CHOOSENIM_CHOOSE_VERSION="stable"
           curl https://nim-lang.org/choosenim/init.sh -sSf > init.sh
           sh init.sh -y
           export PATH=$HOME/.nimble/bin:$PATH
           nimble refresh -y
-
+          
       - name: Run tests
         run: |
-          export PATH=$HOME/.nimble/bin:$PATH
           export MOZ_HEADLESS=1
           nimble -y install
           nimble -y test
+