diff --git a/.github/workflows/integration-testing.yml b/.github/workflows/integration-testing.yml
index e8934cdf..86c7c7e8 100644
--- a/.github/workflows/integration-testing.yml
+++ b/.github/workflows/integration-testing.yml
@@ -24,14 +24,18 @@ jobs:
     strategy:
       matrix:
         php: [ '8.0', '7.4' ]
-        wordpress: [ '6.3', '6.2', '6.1', '6.0', '5.9', '5.8', '5.7' ]
+        wordpress: [ '6.4','6.3', '6.2', '6.1', '6.0', '5.9', '5.8', '5.7' ]
         include:
           - php: '8.1'
-            wordpress: '6.3'
+            wordpress: '6.4'
             coverage: 1
+          - php: '8.1'
+            wordpress: '6.3'
           - php: '8.1'
             wordpress: '6.2'
         exclude:
+          - php: '7.4'
+            wordpress: '6.4'
           - php: '7.4'
             wordpress: '6.3'
           - php: '7.4'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce039b19..affe19b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,8 @@
 
 ## Unreleased
 
-- fix: Ensure `EmailField` inputs are hydrated when Email Confirmation is disabled. H/t @
-Gytjarek.
+- fix: Ensure `EmailField` inputs are hydrated when Email Confirmation is disabled. H/t @Gytjarek.
+- chore: Test compatibility with WordPress 6.4.x
 
 ## v0.12.4
 
diff --git a/bin/run-docker.sh b/bin/run-docker.sh
index 5f181ea5..c1637f93 100644
--- a/bin/run-docker.sh
+++ b/bin/run-docker.sh
@@ -16,11 +16,11 @@ print_usage_instructions() {
 	echo "  composer build-app"
 	echo "  composer run-app"
 	echo ""
-	echo "  WP_VERSION=6.3 PHP_VERSION=8.1 composer build-app"
-	echo "  WP_VERSION=6.3 PHP_VERSION=8.1 composer run-app"
+	echo "  WP_VERSION=6.4 PHP_VERSION=8.1 composer build-app"
+	echo "  WP_VERSION=6.4 PHP_VERSION=8.1 composer run-app"
 	echo ""
-	echo "  WP_VERSION=6.3 PHP_VERSION=8.1 bin/run-docker.sh build -a"
-	echo "  WP_VERSION=6.3 PHP_VERSION=8.1 bin/run-docker.sh run -a"
+	echo "  WP_VERSION=6.4 PHP_VERSION=8.1 bin/run-docker.sh build -a"
+	echo "  WP_VERSION=6.4 PHP_VERSION=8.1 bin/run-docker.sh run -a"
 	exit 1
 }
 
@@ -29,7 +29,7 @@ if [ $# -eq 0 ]; then
 fi
 
 TAG=${TAG-latest}
-WP_VERSION=${WP_VERSION-6.3}
+WP_VERSION=${WP_VERSION-6.4}
 PHP_VERSION=${PHP_VERSION-8.1}
 
 BUILD_NO_CACHE=${BUILD_NO_CACHE-}
diff --git a/readme.txt b/readme.txt
index d2e97a05..70368b68 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,7 +2,7 @@
 Contributors: justlevine, kellenmace, mtdbyanechko, tinytoolbox
 Tags: Forms, GraphQL, Gatsby, Headless, GF, Gravity, WPGraphQL, React
 Requires at least: 5.4.1
-Tested up to: 6.3.1
+Tested up to: 6.4.3
 Requires PHP: 7.4
 Requires Gravity Forms: 2.5.0
 Requires WPGraphQL: 1.9.0
diff --git a/wp-graphql-gravity-forms.php b/wp-graphql-gravity-forms.php
index dd81aa1e..19689eec 100644
--- a/wp-graphql-gravity-forms.php
+++ b/wp-graphql-gravity-forms.php
@@ -11,7 +11,7 @@
  * Text Domain: wp-graphql-gravity-forms
  * Domain Path: /languages
  * Requires at least: 5.4.1
- * Tested up to: 6.3.1
+ * Tested up to: 6.4.3
  * Requires PHP: 7.4
  * WPGraphQL requires at least: 1.9.0
  * GravityForms requires at least: 2.5.0