diff --git a/README.md b/README.md
index a3095f1..5b9acc1 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 <tr><th align="right" valign="top" nowrap>Stable Version</th><td>2.1.1</td></tr>
 <tr><th align="right" valign="top" nowrap>Requires PHP</th><td>7.2.34 or newer</td></tr>
 <tr><th align="right" valign="top" nowrap>Requires WordPress</th><td>5.8 or newer</td></tr>
-<tr><th align="right" valign="top" nowrap>Tested Up To WordPress</th><td>6.4.2</td></tr>
+<tr><th align="right" valign="top" nowrap>Tested Up To WordPress</th><td>6.4.3</td></tr>
 <tr><th align="right" valign="top" nowrap>Contributors</th><td>jsmoriss</td></tr>
 <tr><th align="right" valign="top" nowrap>License</th><td><a href="https://www.gnu.org/licenses/gpl.txt">GPLv3</a></td></tr>
 <tr><th align="right" valign="top" nowrap>Tags / Keywords</th><td>inherit, parent, featured, image</td></tr>
diff --git a/readme.txt b/readme.txt
index 5fe0827..a2de0fa 100644
--- a/readme.txt
+++ b/readme.txt
@@ -10,7 +10,7 @@ Tags: inherit, parent, featured, image
 Contributors: jsmoriss
 Requires PHP: 7.2.34
 Requires At Least: 5.8
-Tested Up To: 6.4.2
+Tested Up To: 6.4.3
 Stable Tag: 2.1.1
 
 Inherit the featured image from the Post, Page, or Custom Post Type parent, grand-parent, great-grand-parent, etc.