diff --git a/jmh/pom.xml b/jmh/pom.xml
index bbe8d6e..24c55bc 100644
--- a/jmh/pom.xml
+++ b/jmh/pom.xml
@@ -6,12 +6,12 @@
   <parent>
     <groupId>org.deephacks.lmdbjni</groupId>
     <artifactId>lmdbjni-project</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <groupId>org.deephacks.lmdbjni</groupId>
   <artifactId>jmh</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
   <packaging>jar</packaging>
 
   <name>JMH benchmark</name>
@@ -36,12 +36,12 @@
     <dependency>
       <groupId>org.deephacks.lmdbjni</groupId>
       <artifactId>lmdbjni</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
     <dependency>
       <groupId>org.deephacks.lmdbjni</groupId>
       <artifactId>lmdbjni-linux64</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
     <dependency>
       <groupId>org.rocksdb</groupId>
diff --git a/lmdbjni-android/pom.xml b/lmdbjni-android/pom.xml
index 492eff1..364d360 100755
--- a/lmdbjni-android/pom.xml
+++ b/lmdbjni-android/pom.xml
@@ -25,11 +25,11 @@ limitations under the License.
   <parent>
     <groupId>org.deephacks.lmdbjni</groupId>
     <artifactId>lmdbjni-project</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <artifactId>lmdbjni-android</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
 
   <name>${project.artifactId}</name>
   <description>The lmdbjni android native libraries</description>
@@ -42,7 +42,7 @@ limitations under the License.
     <dependency>
       <groupId>org.deephacks.lmdbjni</groupId>
       <artifactId>lmdbjni</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
   </dependencies>
 
diff --git a/lmdbjni-linux64/pom.xml b/lmdbjni-linux64/pom.xml
index 56a5990..eb9bf1e 100755
--- a/lmdbjni-linux64/pom.xml
+++ b/lmdbjni-linux64/pom.xml
@@ -25,11 +25,11 @@ limitations under the License.
   <parent>
     <groupId>org.deephacks.lmdbjni</groupId>
     <artifactId>lmdbjni-project</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <artifactId>lmdbjni-linux64</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
 
   <name>${project.artifactId}</name>
   <description>The lmdbjni linux 64 bit native libraries</description>
@@ -42,7 +42,7 @@ limitations under the License.
     <dependency>
       <groupId>org.deephacks.lmdbjni</groupId>
       <artifactId>lmdbjni</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
   </dependencies>
 
diff --git a/lmdbjni-osx64/pom.xml b/lmdbjni-osx64/pom.xml
index f8940a5..5324c71 100755
--- a/lmdbjni-osx64/pom.xml
+++ b/lmdbjni-osx64/pom.xml
@@ -25,11 +25,11 @@ limitations under the License.
   <parent>
     <groupId>org.deephacks.lmdbjni</groupId>
     <artifactId>lmdbjni-project</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <artifactId>lmdbjni-osx64</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
 
   <name>${project.artifactId}</name>
   <description>The lmdbjni osx 64 bit native libraries</description>
@@ -38,7 +38,7 @@ limitations under the License.
     <dependency>
       <groupId>org.deephacks.lmdbjni</groupId>
       <artifactId>lmdbjni</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
   </dependencies>
 
@@ -71,7 +71,7 @@ limitations under the License.
           <nativeSrcDependency>
             <groupId>org.deephacks.lmdbjni</groupId>
             <artifactId>lmdbjni</artifactId>
-            <version>0.3.1-SNAPSHOT</version>
+            <version>0.3.1</version>
             <classifier>native-src</classifier>
             <type>zip</type>
           </nativeSrcDependency>
diff --git a/lmdbjni-win64/pom.xml b/lmdbjni-win64/pom.xml
index 6087699..8b54322 100644
--- a/lmdbjni-win64/pom.xml
+++ b/lmdbjni-win64/pom.xml
@@ -5,11 +5,11 @@
   <parent>
     <groupId>org.deephacks.lmdbjni</groupId>
     <artifactId>lmdbjni-project</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <artifactId>lmdbjni-win64</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
 
   <name>${project.artifactId}</name>
   <description>The lmdbjni Windows 64 bit native libraries</description>
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>org.deephacks.lmdbjni</groupId>
       <artifactId>lmdbjni</artifactId>
-      <version>0.3.1-SNAPSHOT</version>
+      <version>0.3.1</version>
     </dependency>
   </dependencies>
 
diff --git a/lmdbjni/pom.xml b/lmdbjni/pom.xml
index 0de6f06..2f2b814 100755
--- a/lmdbjni/pom.xml
+++ b/lmdbjni/pom.xml
@@ -25,11 +25,11 @@
   <parent>
     <groupId>org.deephacks.lmdbjni</groupId>
     <artifactId>lmdbjni-project</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.1</version>
   </parent>
 
   <artifactId>lmdbjni</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
   <packaging>jar</packaging>
 
   <name>${project.artifactId}</name>
diff --git a/pom.xml b/pom.xml
index d51560e..a4df84f 100755
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
 
   <groupId>org.deephacks.lmdbjni</groupId>
   <artifactId>lmdbjni-project</artifactId>
-  <version>0.3.1-SNAPSHOT</version>
+  <version>0.3.1</version>
   <packaging>pom</packaging>
 
   <name>${project.artifactId}</name>