diff --git a/djutils-cli/pom.xml b/djutils-cli/pom.xml
index 7df19657..9e202363 100644
--- a/djutils-cli/pom.xml
+++ b/djutils-cli/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.djutils</groupId>
     <artifactId>djutils-parent</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
   </parent>
   
   <artifactId>djutils-cli</artifactId>
diff --git a/djutils-data/pom.xml b/djutils-data/pom.xml
index 22ec33a4..21112ce5 100644
--- a/djutils-data/pom.xml
+++ b/djutils-data/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.djutils</groupId>
     <artifactId>djutils-parent</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
   </parent>
   
   <artifactId>djutils-data</artifactId>
diff --git a/djutils-draw/pom.xml b/djutils-draw/pom.xml
index 0ddb8769..8cb08f1d 100644
--- a/djutils-draw/pom.xml
+++ b/djutils-draw/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.djutils</groupId>
     <artifactId>djutils-parent</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
   </parent>
 
   <artifactId>djutils-draw</artifactId>
diff --git a/djutils-serialization/pom.xml b/djutils-serialization/pom.xml
index 8d83ddd2..8e1b6515 100644
--- a/djutils-serialization/pom.xml
+++ b/djutils-serialization/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.djutils</groupId>
     <artifactId>djutils-parent</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
   </parent>
   
   <artifactId>djutils-serialization</artifactId>
diff --git a/djutils-stats/pom.xml b/djutils-stats/pom.xml
index 5daa2a21..e799e38b 100644
--- a/djutils-stats/pom.xml
+++ b/djutils-stats/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.djutils</groupId>
     <artifactId>djutils-parent</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
   </parent>
   
   <artifactId>djutils-stats</artifactId>
diff --git a/djutils/pom.xml b/djutils/pom.xml
index 8f02a444..04b536a7 100644
--- a/djutils/pom.xml
+++ b/djutils/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.djutils</groupId>
     <artifactId>djutils-parent</artifactId>
-    <version>2.1.0</version>
+    <version>2.1.1</version>
   </parent>
 
   <artifactId>djutils</artifactId>
diff --git a/pom.xml b/pom.xml
index cc8c2166..74927829 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.djutils</groupId>
   <artifactId>djutils-parent</artifactId>
-  <version>2.1.0</version>
+  <version>2.1.1</version>
   <packaging>pom</packaging>
   <name>Delft Java Utilities</name>
   <description>Delft Java Utilities</description>