diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 452ea4a..24b71df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -44,15 +44,15 @@ jobs:
       matrix:
         database: ['pgsql', 'mariadb']
         moodle-branch: ['MOODLE_39_STABLE']
-        node: ['14.15.1']
+        node: ['14.15.0']
         php: ['7.2', '7.3']
         include:
-          - {moodle-branch: 'MOODLE_35_STABLE', php: '7.1', node: '14.15.1', database: 'mariadb'}
-          - {moodle-branch: 'MOODLE_35_STABLE', php: '7.2', node: '14.15.1', database: 'mariadb'}
-          - {moodle-branch: 'MOODLE_39_STABLE', php: '7.4', node: '14.15.1', database: 'mariadb'}
-          - {moodle-branch: 'MOODLE_39_STABLE', php: '7.4', node: '14.15.1', database: 'pgsql'}
-          - {moodle-branch: 'MOODLE_310_STABLE', php: '7.4', node: '14.15.1', database: 'mariadb'}
-          - {moodle-branch: 'MOODLE_311_STABLE', php: '7.4', node: '14.15.1', database: 'pgsql'}
+          - {moodle-branch: 'MOODLE_35_STABLE', php: '7.1', node: '14.15.0', database: 'mariadb'}
+          - {moodle-branch: 'MOODLE_35_STABLE', php: '7.2', node: '14.15.0', database: 'mariadb'}
+          - {moodle-branch: 'MOODLE_39_STABLE', php: '7.4', node: '14.15.0', database: 'mariadb'}
+          - {moodle-branch: 'MOODLE_39_STABLE', php: '7.4', node: '14.15.0', database: 'pgsql'}
+          - {moodle-branch: 'MOODLE_310_STABLE', php: '7.4', node: '14.15.0', database: 'mariadb'}
+          - {moodle-branch: 'MOODLE_311_STABLE', php: '7.4', node: '14.15.0', database: 'pgsql'}
 
     steps:
       - name: Check out repository code