diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 23794f5..2df8c6a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -31,6 +31,8 @@ jobs:
           extensions: exif, phar, openssl
           coverage: none
           ini-values: phar.readonly=Off, error_reporting=-1, display_errors=On, display_startup_errors=On, zend.assertions=1
+        env:
+          fail-fast: true
 
       - name: Install Box
         run: composer global require humbug/box
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b31a10e..1eb0c28 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -47,6 +47,8 @@ jobs:
         extensions: mbstring
         ini-values: zend.assertions=1, error_reporting=-1, display_errors=On, display_startup_errors=On, log_errors_max_len=0
         coverage: none
+      env:
+        fail-fast: true
 
     # Install dependencies and handle caching in one go.
     # @link https://github.com/marketplace/actions/install-php-dependencies-with-composer