diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 25e135f3..59f51044 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,5 +1,9 @@
 # d1_libclient_java Release Notes
 
+## 2.4.1 (2026-08-19)
+
+- Intent: Deliver a patch release updating `d1_common_java` to version [2.5.1](https://github.com/DataONEorg/d1_common_java/releases/tag/2.5.1).
+
 ## 2.4.0 (2026-07-06)
 
 - Intent: Deliver a modernization and maintenance release aligned with current Java runtimes and the current d1_common_java line.
diff --git a/pom.xml b/pom.xml
index 808c0c66..0b49274d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,13 +5,13 @@
   <groupId>org.dataone</groupId>
   <artifactId>d1_libclient_java</artifactId>
   <packaging>jar</packaging>
-  <version>2.4.0</version>
+  <version>2.4.1</version>
   <name>DataONE Java Client Library</name>
   <url>http://dataone.org</url>
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <bouncycastle.version>1.84</bouncycastle.version>
-    <d1_common_java.version>2.5.0</d1_common_java.version>
+    <d1_common_java.version>2.5.1</d1_common_java.version>
     <d1_test_resources.version>2.4.0</d1_test_resources.version>
     <maven.compiler.release>25</maven.compiler.release>
   </properties>