diff --git a/dspace-api/pom.xml b/dspace-api/pom.xml
index c03c3a638f..7896ac64af 100644
--- a/dspace-api/pom.xml
+++ b/dspace-api/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.dspace</groupId>
         <artifactId>dspace-parent</artifactId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/dspace-jspui/pom.xml b/dspace-jspui/pom.xml
index 7187217417..9c0f864644 100644
--- a/dspace-jspui/pom.xml
+++ b/dspace-jspui/pom.xml
@@ -13,7 +13,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>dspace-parent</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace-lni/pom.xml b/dspace-lni/pom.xml
index b6f2c6c92c..2034b79ca6 100644
--- a/dspace-lni/pom.xml
+++ b/dspace-lni/pom.xml
@@ -11,7 +11,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>dspace-parent</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace-oai/pom.xml b/dspace-oai/pom.xml
index 061dcfc287..269eed637f 100644
--- a/dspace-oai/pom.xml
+++ b/dspace-oai/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <artifactId>dspace-parent</artifactId>
         <groupId>org.dspace</groupId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/dspace-services/pom.xml b/dspace-services/pom.xml
index 8e57834a47..a84722341c 100644
--- a/dspace-services/pom.xml
+++ b/dspace-services/pom.xml
@@ -9,7 +9,7 @@
     <parent>
         <groupId>org.dspace</groupId>
         <artifactId>dspace-parent</artifactId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
     </parent>
 
     <properties>
diff --git a/dspace-sword/pom.xml b/dspace-sword/pom.xml
index 989bf3e9dd..ed674e3e31 100644
--- a/dspace-sword/pom.xml
+++ b/dspace-sword/pom.xml
@@ -15,7 +15,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>dspace-parent</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace-swordv2/pom.xml b/dspace-swordv2/pom.xml
index d9a9d47a9a..954639e5df 100644
--- a/dspace-swordv2/pom.xml
+++ b/dspace-swordv2/pom.xml
@@ -13,7 +13,7 @@
     <parent>
         <groupId>org.dspace</groupId>
         <artifactId>dspace-parent</artifactId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/dspace-xmlui/pom.xml b/dspace-xmlui/pom.xml
index 938d5ff1d6..7bb04428fe 100644
--- a/dspace-xmlui/pom.xml
+++ b/dspace-xmlui/pom.xml
@@ -11,7 +11,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>dspace-parent</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/modules/additions/pom.xml b/dspace/modules/additions/pom.xml
index 300952505f..3943a75f58 100644
--- a/dspace/modules/additions/pom.xml
+++ b/dspace/modules/additions/pom.xml
@@ -17,7 +17,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>modules</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/modules/jspui/pom.xml b/dspace/modules/jspui/pom.xml
index c5097e89ac..f8d79af8f0 100644
--- a/dspace/modules/jspui/pom.xml
+++ b/dspace/modules/jspui/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <groupId>org.dspace</groupId>
         <artifactId>modules</artifactId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/dspace/modules/lni/pom.xml b/dspace/modules/lni/pom.xml
index 4c39580bf2..a2c33b615a 100644
--- a/dspace/modules/lni/pom.xml
+++ b/dspace/modules/lni/pom.xml
@@ -13,7 +13,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>modules</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/modules/oai/pom.xml b/dspace/modules/oai/pom.xml
index bc6bbfc5c8..4927fd9e09 100644
--- a/dspace/modules/oai/pom.xml
+++ b/dspace/modules/oai/pom.xml
@@ -12,7 +12,7 @@
     <parent>
         <artifactId>modules</artifactId>
         <groupId>org.dspace</groupId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/dspace/modules/pom.xml b/dspace/modules/pom.xml
index 55f07dcf93..ab2e290c3f 100644
--- a/dspace/modules/pom.xml
+++ b/dspace/modules/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>org.dspace</groupId>
 		<artifactId>dspace-parent</artifactId>
-		<version>4.0-SNAPSHOT</version>
+		<version>3.1</version>
 		<relativePath>../../pom.xml</relativePath>
 	</parent>
 
diff --git a/dspace/modules/solr/pom.xml b/dspace/modules/solr/pom.xml
index d7c637abfc..e17d98f9b9 100644
--- a/dspace/modules/solr/pom.xml
+++ b/dspace/modules/solr/pom.xml
@@ -2,7 +2,7 @@
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.dspace.modules</groupId>
    <artifactId>solr</artifactId>
-   <version>4.0-SNAPSHOT</version>
+   <version>3.1</version>
    <packaging>war</packaging>
    <name>DSpace SOLR :: Local Customizations</name>
    <description>
@@ -13,7 +13,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>modules</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/modules/sword/pom.xml b/dspace/modules/sword/pom.xml
index ae8dda233e..4540887f2f 100644
--- a/dspace/modules/sword/pom.xml
+++ b/dspace/modules/sword/pom.xml
@@ -16,7 +16,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>modules</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/modules/swordv2/pom.xml b/dspace/modules/swordv2/pom.xml
index fd55dcf571..249d47dadd 100644
--- a/dspace/modules/swordv2/pom.xml
+++ b/dspace/modules/swordv2/pom.xml
@@ -16,7 +16,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>modules</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/modules/xmlui/pom.xml b/dspace/modules/xmlui/pom.xml
index ddf6c8e6f7..94c99a80e8 100644
--- a/dspace/modules/xmlui/pom.xml
+++ b/dspace/modules/xmlui/pom.xml
@@ -12,7 +12,7 @@
    <parent>
       <groupId>org.dspace</groupId>
       <artifactId>modules</artifactId>
-      <version>4.0-SNAPSHOT</version>
+      <version>3.1</version>
       <relativePath>..</relativePath>
    </parent>
 
diff --git a/dspace/pom.xml b/dspace/pom.xml
index 449ad655dd..9b04e32163 100644
--- a/dspace/pom.xml
+++ b/dspace/pom.xml
@@ -15,7 +15,7 @@
     <parent>
         <groupId>org.dspace</groupId>
         <artifactId>dspace-parent</artifactId>
-        <version>4.0-SNAPSHOT</version>
+        <version>3.1</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index bdb2082652..188e5d916d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
    <groupId>org.dspace</groupId>
    <artifactId>dspace-parent</artifactId>
    <packaging>pom</packaging>
-   <version>4.0-SNAPSHOT</version>
+   <version>3.1</version>
    <name>DSpace Parent Project</name>
    <url>https://github.com/dspace/DSpace</url>
 
@@ -444,71 +444,71 @@
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-api</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
          </dependency>
          <dependency>
             <groupId>org.dspace.modules</groupId>
             <artifactId>additions</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
          </dependency>
 
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-sword</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>jar</type>
             <classifier>classes</classifier>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-sword</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>war</type>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-swordv2</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>jar</type>
             <classifier>classes</classifier>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-swordv2</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>war</type>
          </dependency>
 
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-jspui</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>jar</type>
             <classifier>classes</classifier>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-jspui</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>war</type>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-oai</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>jar</type>
             <classifier>classes</classifier>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-oai</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>war</type>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-lni</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>jar</type>
             <classifier>classes</classifier>
          </dependency>
@@ -520,26 +520,26 @@
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-lni</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>war</type>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-xmlui</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>jar</type>
             <classifier>classes</classifier>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-xmlui</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
             <type>war</type>
          </dependency>
          <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-services</artifactId>
-            <version>4.0-SNAPSHOT</version>
+            <version>3.1</version>
          </dependency>
          <!-- DSpace Localization Packages -->
          <dependency>
@@ -1179,7 +1179,7 @@
       <connection>scm:git:git@github.com:DSpace/DSpace.git</connection>
       <developerConnection>scm:git:git@github.com:DSpace/DSpace.git</developerConnection>
       <url>git@github.com:DSpace/DSpace.git</url>
-     <tag>HEAD</tag>
+     <tag>dspace-3.1</tag>
   </scm>
 
     <!--