diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d3319ca9e..616470279 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,13 +78,17 @@ jobs:
       fail-fast: false
       matrix:
         php: ['7.4', '8.0', '8.1', '8.2']
-        symfony_version: ['5.4.*', '6.2.*']
+        symfony_version: ['5.4.*', '6.2.*', '6.3.*']
         dependencies: ['--prefer-lowest', '--prefer-dist']
         exclude:
           - php: '7.4'
             symfony_version: '6.2.*'
+          - php: '7.4'
+            symfony_version: '6.3.*'
           - php: '8.0'
             symfony_version: '6.2.*'
+          - php: '8.0'
+            symfony_version: '6.3.*'
 
     name: PHP ${{ matrix.php }} unit tests on Sf ${{ matrix.symfony_version }}, deps=${{ matrix.dependencies }}
 
@@ -124,13 +128,17 @@ jobs:
       fail-fast: false
       matrix:
         php: ['7.4', '8.0', '8.1', '8.2'] # same as in the container
-        symfony_version: ['5.4.*', '6.2.*']
+        symfony_version: ['5.4.*', '6.2.*', '6.3.*']
         dependencies: ['--prefer-lowest', '--prefer-dist']
         exclude:
           - php: '7.4'
             symfony_version: '6.2.*'
+          - php: '7.4'
+            symfony_version: '6.3.*'
           - php: '8.0'
             symfony_version: '6.2.*'
+          - php: '8.0'
+            symfony_version: '6.3.*'
 
     name: PHP ${{ matrix.php }} functional tests on Sf ${{ matrix.symfony_version }}, deps=${{ matrix.dependencies }}