diff --git a/pom.xml b/pom.xml
index 8e02f6c..7cd5a03 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>net.sansa-stack</groupId>
   <artifactId>sansa-inference-parent_2.11</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.4.0</version>
   <packaging>pom</packaging>
   <name>Inference API - Parent</name>
 
diff --git a/sansa-inference-common/pom.xml b/sansa-inference-common/pom.xml
index f6de806..60a4610 100644
--- a/sansa-inference-common/pom.xml
+++ b/sansa-inference-common/pom.xml
@@ -4,12 +4,12 @@
   <parent>
     <artifactId>sansa-inference-parent_2.11</artifactId>
     <groupId>net.sansa-stack</groupId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.4.0</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
   <groupId>net.sansa-stack</groupId>
   <artifactId>sansa-inference-common_${scala.binary.version}</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.4.0</version>
   <name>Inference API - Common</name>
   <description>A set of common objects used in the Inference API</description>
 
diff --git a/sansa-inference-flink/pom.xml b/sansa-inference-flink/pom.xml
index 555d65b..a95afa9 100644
--- a/sansa-inference-flink/pom.xml
+++ b/sansa-inference-flink/pom.xml
@@ -23,12 +23,12 @@ under the License.
 	<parent>
 		<groupId>net.sansa-stack</groupId>
 		<artifactId>sansa-inference-parent_2.11</artifactId>
-		<version>0.3.1-SNAPSHOT</version>
+		<version>0.4.0</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 	<groupId>net.sansa-stack</groupId>
 	<artifactId>sansa-inference-flink_${scala.binary.version}</artifactId>
-	<version>0.3.1-SNAPSHOT</version>
+	<version>0.4.0</version>
 
 	<name>Inference API - Flink</name>
 	<description>Apache Flink based inference layer for RDF and OWL</description>
diff --git a/sansa-inference-spark/pom.xml b/sansa-inference-spark/pom.xml
index ffb7ffd..9acac07 100644
--- a/sansa-inference-spark/pom.xml
+++ b/sansa-inference-spark/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>net.sansa-stack</groupId>
         <artifactId>sansa-inference-parent_2.11</artifactId>
-        <version>0.3.1-SNAPSHOT</version>
+        <version>0.4.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <groupId>net.sansa-stack</groupId>
     <artifactId>sansa-inference-spark_${scala.binary.version}</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.4.0</version>
 
     <name>Inference API - Spark</name>
     <description>Apache Spark based inference layer for RDF and OWL</description>
diff --git a/sansa-inference-tests/pom.xml b/sansa-inference-tests/pom.xml
index bf65595..795ada6 100644
--- a/sansa-inference-tests/pom.xml
+++ b/sansa-inference-tests/pom.xml
@@ -4,12 +4,12 @@
   <parent>
     <artifactId>sansa-inference-parent_2.11</artifactId>
     <groupId>net.sansa-stack</groupId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.4.0</version>
     <relativePath>../pom.xml</relativePath>
   </parent>
   <groupId>net.sansa-stack</groupId>
   <artifactId>sansa-inference-tests_${scala.binary.version}</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.4.0</version>
   <name>Inference API - Tests</name>
   <description>Contains common data and utils for inference API testing</description>