diff --git a/.github/workflows/test-e2e.yml b/.github/workflows/test-e2e.yml
index 653fcc2155c..1ed7b090547 100644
--- a/.github/workflows/test-e2e.yml
+++ b/.github/workflows/test-e2e.yml
@@ -24,7 +24,7 @@ jobs:
         wp: # Test against Prev-Prev Major, Prev-Major, and current Major release versions.
           - "6.2"
           - "6.3"
-          # - "6.4" Should enable this when 6.4 is released.
+          - "6.4"
         theme:
           - "https://downloads.wordpress.org/theme/go.zip"
           - "" # Default theme is TwentyTwentyThree
diff --git a/.github/workflows/test-php.yml b/.github/workflows/test-php.yml
index 9b2adb9441d..846e070f590 100644
--- a/.github/workflows/test-php.yml
+++ b/.github/workflows/test-php.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         php: ['7.4','8.0','8.1','8.2']
-        wp: ['6.3', '6.2', '6.1']
+        wp: ['6.4', '6.3', '6.2']
     name: PHP Unit ${{ matrix.php }} | WP Version ${{ matrix.wp }}
     uses: ./.github/workflows/test-php-unit.yml
     with: