diff --git a/.github/workflows/graphiql-e2e-tests.yml b/.github/workflows/graphiql-e2e-tests.yml
index 45f4afb8e..1f7f75e9c 100644
--- a/.github/workflows/graphiql-e2e-tests.yml
+++ b/.github/workflows/graphiql-e2e-tests.yml
@@ -30,7 +30,18 @@ jobs:
               with:
                   node-version: ${{ matrix.node-version }}
 
-            - name: Install dependencies
+            - name: Setup PHP
+                uses: shivammathur/setup-php@v2
+                with:
+                  php-version: 7.4
+                  extensions: mbstring, intl
+                  tools: composer
+
+            - name: Install PHP dependencies
+                run: |
+                  composer install --optimize-autoloader
+
+            - name: Install JavaScript dependencies
               run: npm ci
 
             - name: Build Assets
diff --git a/tests/e2e/specs/graphiql.spec.js b/tests/e2e/specs/graphiql.spec.js
index 82096445b..627d9e08d 100644
--- a/tests/e2e/specs/graphiql.spec.js
+++ b/tests/e2e/specs/graphiql.spec.js
@@ -78,7 +78,7 @@ export async function loadGraphiQL( page, queryParams = { query: null, variables
 
     // if there's an error, go to the plugins page
     if ( ! pageTitle.includes( 'GraphiQL' ) ) {
-        page.goto( wpAdminUrl + '/plugins.php' )
+        page.goto( wpAdminUrl + '/plugins.php', { waitUntil: 'networkidle' } )
     }
 
     await page.waitForLoadState( 'networkidle' );