diff --git a/changes.xml b/changes.xml
index 13fdd528..16ca2ebe 100644
--- a/changes.xml
+++ b/changes.xml
@@ -23,6 +23,12 @@
     xsi:schemaLocation="http://maven.apache.org/changes/1.0.0 http://maven.apache.org/plugins/maven-changes-plugin/xsd/changes-1.0.0.xsd">
   <body>
 
+    <release version="5.5.4" date="not released">
+      <action type="update" dev="sseifert">
+        Update to latest Sling Mock.
+      </action>
+    </release>
+
     <release version="5.5.2" date="2024-04-23">
       <action type="update" dev="koenkicken" issue="36">
         MockComponent: Implement isContainer method.
diff --git a/parent/pom.xml b/parent/pom.xml
index 2d73427f..6ab24955 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -59,7 +59,7 @@
     <resourceresolver-mock.version>1.4.6</resourceresolver-mock.version>
 
     <!-- Sling Mock -->
-    <sling-mock.version>3.5.0</sling-mock.version>
+    <sling-mock.version>3.5.1-SNAPSHOT</sling-mock.version>
 
     <!-- Servlet Helpers -->
     <servlet-helpers.version>1.4.6</servlet-helpers.version>
