diff --git a/java/pom.xml b/java/pom.xml
index befd3cbdf3..4f9503560c 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -58,7 +58,7 @@
     </developers>
 
     <packaging>jar</packaging>
-    <version>1.4.0-SNAPSHOT</version>
+    <version>1.4.0</version>
 
     <properties>
         <java.version>17</java.version>
diff --git a/pypowsybl/__init__.py b/pypowsybl/__init__.py
index fea7a26b00..d9956d84ec 100644
--- a/pypowsybl/__init__.py
+++ b/pypowsybl/__init__.py
@@ -22,7 +22,7 @@
 )
 from pypowsybl.network import per_unit_view
 
-__version__ = '1.4.0.dev1'
+__version__ = '1.4.0'
 
 # set JVM java.library.path to pypowsybl module installation directory to be able to load math library
 _pypowsybl.set_java_library_path(_os.path.dirname(_inspect.getfile(_pypowsybl)))