diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5e0be52..1f017a1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,23 +30,25 @@ jobs:
       COMPOSER_ROOT_VERSION: 1.0.0
       EXTENSIONS: pdo, pdo_oci
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        os:
-          - ubuntu-latest
-
         php:
-          - 8.0
-          - 8.1
-          - 8.2
           - 8.3
 
         oracle:
           - 18
           - 21
 
+        include:
+          - php: 8.0
+            oracle: 21
+          - php: 8.1
+            oracle: 21
+          - php: 8.2
+            oracle: 21
+
     services:
       oci:
         image: gvenzl/oracle-xe:${{ matrix.oracle }}