diff --git a/Mustang-CLI/pom.xml b/Mustang-CLI/pom.xml
index ad5cb997..0d60df51 100644
--- a/Mustang-CLI/pom.xml
+++ b/Mustang-CLI/pom.xml
@@ -12,7 +12,7 @@
         should also work for XRechnung/CII.
     </name>
     <packaging>jar</packaging>
-    <version>2.17.0-SNAPSHOT</version>
+    <version>2.16.5-SNAPSHOT</version>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.compilerVersion>11</maven.compiler.compilerVersion>
diff --git a/library/pom.xml b/library/pom.xml
index 2e620a88..7a0112dc 100644
--- a/library/pom.xml
+++ b/library/pom.xml
@@ -9,7 +9,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.mustangproject</groupId>
     <artifactId>library</artifactId>
-    <version>2.17.0-SNAPSHOT</version>
+    <version>2.16.5-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>Library to write, read and validate e-invoices (Factur-X, ZUGFeRD, Order-X, XRechnung/CII)</name>
     <description>FOSS Java library to read, write and validate european electronic invoices and orders in the UN/CEFACT
diff --git a/validator/pom.xml b/validator/pom.xml
index 9a6ebe82..11bbf501 100644
--- a/validator/pom.xml
+++ b/validator/pom.xml
@@ -11,7 +11,7 @@
     <name>Library to validate e-invoices (ZUGFeRD, Factur-X and Xrechnung)</name>
 
     <packaging>jar</packaging>
-    <version>2.17.0-SNAPSHOT</version>
+    <version>2.16.5-SNAPSHOT</version>
     <repositories>
         <repository>
             <!-- for jargs -->