diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d787b95..bad460b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,6 +36,11 @@ jobs:
         # release-24.05
         nix_path: nixpkgs=https://github.com/NixOS/nixpkgs/archive/74435c9234c751e6786c5f3fd34ff6b0f0c13bd1.tar.gz
 
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libpcre3-dev
+
     - uses: haskell-actions/setup@v2
       id: setup-haskell-cabal
       name: Setup Haskell
@@ -94,10 +99,10 @@ jobs:
         path: ~/.stack
         key: ${{ runner.os }}-${{ matrix.ghc }}-${{ matrix.yaml }}-stack
 
-    # - name: apt
-    #   run: |
-    #     sudo apt-get update
-    #     sudo apt-get install -y libx11-dev libxext-dev libxinerama-dev libxrandr-dev libxss-dev
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libpcre3-dev
 
     - name: Build
       run: |