diff --git a/docs-core/pom.xml b/docs-core/pom.xml
index 3c1730c1..498aee4b 100644
--- a/docs-core/pom.xml
+++ b/docs-core/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.sismics.docs</groupId>
     <artifactId>docs-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.4-SNAPSHOT</version>
     <relativePath>..</relativePath>
   </parent>
   
diff --git a/docs-core/src/main/java/com/sismics/docs/core/dao/jpa/TagDao.java b/docs-core/src/main/java/com/sismics/docs/core/dao/jpa/TagDao.java
index a00ee16a..c9a74f01 100644
--- a/docs-core/src/main/java/com/sismics/docs/core/dao/jpa/TagDao.java
+++ b/docs-core/src/main/java/com/sismics/docs/core/dao/jpa/TagDao.java
@@ -1,6 +1,12 @@
 package com.sismics.docs.core.dao.jpa;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
 
 import javax.persistence.EntityManager;
 import javax.persistence.NoResultException;
@@ -8,11 +14,8 @@ import javax.persistence.Query;
 
 import com.google.common.base.Joiner;
 import com.sismics.docs.core.constant.AuditLogType;
-import com.sismics.docs.core.dao.jpa.criteria.GroupCriteria;
 import com.sismics.docs.core.dao.jpa.criteria.TagCriteria;
-import com.sismics.docs.core.dao.jpa.dto.GroupDto;
 import com.sismics.docs.core.dao.jpa.dto.TagDto;
-import com.sismics.docs.core.dao.jpa.dto.TagStatDto;
 import com.sismics.docs.core.model.jpa.DocumentTag;
 import com.sismics.docs.core.model.jpa.Tag;
 import com.sismics.docs.core.util.AuditLogUtil;
diff --git a/docs-core/src/main/java/com/sismics/util/jpa/DbOpenHelper.java b/docs-core/src/main/java/com/sismics/util/jpa/DbOpenHelper.java
index dac8b80c..fcc4f3f2 100644
--- a/docs-core/src/main/java/com/sismics/util/jpa/DbOpenHelper.java
+++ b/docs-core/src/main/java/com/sismics/util/jpa/DbOpenHelper.java
@@ -5,7 +5,6 @@ import java.io.FilenameFilter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.io.Writer;
 import java.sql.Connection;
 import java.sql.ResultSet;
 import java.sql.SQLException;
diff --git a/docs-core/src/test/java/com/sismics/docs/core/util/TestFileUtil.java b/docs-core/src/test/java/com/sismics/docs/core/util/TestFileUtil.java
index 8ce18dc4..4f7a58d9 100644
--- a/docs-core/src/test/java/com/sismics/docs/core/util/TestFileUtil.java
+++ b/docs-core/src/test/java/com/sismics/docs/core/util/TestFileUtil.java
@@ -9,7 +9,6 @@ import org.junit.Assert;
 import org.junit.Test;
 
 import com.google.common.collect.Lists;
-import com.google.common.io.ByteStreams;
 import com.google.common.io.Resources;
 import com.sismics.docs.core.dao.jpa.dto.DocumentDto;
 import com.sismics.docs.core.model.jpa.File;
diff --git a/docs-stress/pom.xml b/docs-stress/pom.xml
index 6c917af7..e6cb862b 100644
--- a/docs-stress/pom.xml
+++ b/docs-stress/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.sismics.docs</groupId>
     <artifactId>docs-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.4-SNAPSHOT</version>
     <relativePath>..</relativePath>
   </parent>
   
diff --git a/docs-web-common/pom.xml b/docs-web-common/pom.xml
index 427999c7..1a736939 100644
--- a/docs-web-common/pom.xml
+++ b/docs-web-common/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.sismics.docs</groupId>
     <artifactId>docs-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.4-SNAPSHOT</version>
     <relativePath>..</relativePath>
   </parent>
   
diff --git a/docs-web/pom.xml b/docs-web/pom.xml
index e4f2420a..a3cba6c6 100644
--- a/docs-web/pom.xml
+++ b/docs-web/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.sismics.docs</groupId>
     <artifactId>docs-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.4-SNAPSHOT</version>
     <relativePath>..</relativePath>
   </parent>
   
diff --git a/docs-web/src/main/java/com/sismics/docs/rest/resource/ThemeResource.java b/docs-web/src/main/java/com/sismics/docs/rest/resource/ThemeResource.java
index 82dc70d3..46032995 100644
--- a/docs-web/src/main/java/com/sismics/docs/rest/resource/ThemeResource.java
+++ b/docs-web/src/main/java/com/sismics/docs/rest/resource/ThemeResource.java
@@ -37,10 +37,6 @@ import java.util.Map;
  */
 @Path("/theme")
 public class ThemeResource extends BaseResource {
-    // Filenames for images in theme directory
-    private static final String LOGO_IMAGE = "logo";
-    private static final String BACKGROUND_IMAGE = "background";
-
 	/**
      * Returns custom CSS stylesheet.
      * 
@@ -162,7 +158,7 @@ public class ThemeResource extends BaseResource {
                     if (Files.exists(filePath)) {
                         inputStream = Files.newInputStream(filePath);
                     } else {
-                        inputStream = getClass().getResource("/image/" + (type.equals(LOGO_IMAGE) ? "logo.png" : "background.jpg")).openStream();
+                        inputStream = getClass().getResource("/image/" + (type.equals("logo") ? "logo.png" : "background.jpg")).openStream();
                     }
                     ByteStreams.copy(inputStream, outputStream);
                 } finally {
diff --git a/docs-web/src/test/java/com/sismics/docs/rest/TestTagResource.java b/docs-web/src/test/java/com/sismics/docs/rest/TestTagResource.java
index c7d61e80..efd09d02 100644
--- a/docs-web/src/test/java/com/sismics/docs/rest/TestTagResource.java
+++ b/docs-web/src/test/java/com/sismics/docs/rest/TestTagResource.java
@@ -2,7 +2,6 @@ package com.sismics.docs.rest;
 
 import javax.json.JsonArray;
 import javax.json.JsonObject;
-import javax.json.JsonValue;
 import javax.ws.rs.client.Entity;
 import javax.ws.rs.core.Form;
 import javax.ws.rs.core.Response;
diff --git a/pom.xml b/pom.xml
index 64c8b8e7..cbd0371d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
   <groupId>com.sismics.docs</groupId>
   <artifactId>docs-parent</artifactId>
   <packaging>pom</packaging>
-  <version>1.0-SNAPSHOT</version>
+  <version>1.4-SNAPSHOT</version>
 
   <name>Docs Parent</name>