diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 424dae9..f9b8307 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       matrix:
         version: [ '8.0', '8.1', '8.2', '8.3' ]
-        extensions: [ 'pcntl xdebug zip' ]
+        extensions: [ 'pcntl xdebug zip intl bcmath' ]
 
     runs-on: ubuntu-latest