diff --git a/cube-manager-api/pom.xml b/cube-manager-api/pom.xml
index eb3faf4..d933f49 100644
--- a/cube-manager-api/pom.xml
+++ b/cube-manager-api/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.gcube.data.analysis.tabulardata</groupId>
 		<artifactId>cube-manager-parent</artifactId>
-		<version>3.5.2-SNAPSHOT</version>
+		<version>3.5.3-SNAPSHOT</version>
 	</parent>
 	<artifactId>cube-manager-api</artifactId>
 	<name>Cube Manager API</name>
diff --git a/cube-manager-data/pom.xml b/cube-manager-data/pom.xml
index c7e51ca..0ff7290 100644
--- a/cube-manager-data/pom.xml
+++ b/cube-manager-data/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.gcube.data.analysis.tabulardata</groupId>
 		<artifactId>cube-manager-parent</artifactId>
-		<version>3.5.2-SNAPSHOT</version>
+		<version>3.5.3-SNAPSHOT</version>
 	</parent>
 	<artifactId>cube-manager-data</artifactId>
 	<name>Cube Manager Data</name>
@@ -27,12 +27,6 @@
 			<version>7.0.41</version>
 		</dependency>
 
-		<dependency>
-			<groupId>commons-lang</groupId>
-			<artifactId>commons-lang</artifactId>
-			<version>20030203.000129</version>
-		</dependency>
-
 		<dependency>
 			<groupId>postgresql</groupId>
 			<artifactId>postgresql</artifactId>
diff --git a/cube-manager-data/src/main/java/org/gcube/data/analysis/tabulardata/cube/data/SQLDatabaseWrangler.java b/cube-manager-data/src/main/java/org/gcube/data/analysis/tabulardata/cube/data/SQLDatabaseWrangler.java
index efa8832..6fe3455 100644
--- a/cube-manager-data/src/main/java/org/gcube/data/analysis/tabulardata/cube/data/SQLDatabaseWrangler.java
+++ b/cube-manager-data/src/main/java/org/gcube/data/analysis/tabulardata/cube/data/SQLDatabaseWrangler.java
@@ -9,6 +9,7 @@ import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.List;
+import java.util.Random;
 import java.util.regex.Pattern;
 
 import javax.annotation.PostConstruct;
@@ -17,7 +18,6 @@ import javax.inject.Inject;
 import javax.inject.Singleton;
 
 import org.apache.commons.dbutils.DbUtils;
-import org.apache.commons.lang.RandomStringUtils;
 import org.gcube.data.analysis.tabulardata.cube.data.connection.DatabaseConnectionProvider;
 import org.gcube.data.analysis.tabulardata.cube.data.connection.admin.Admin;
 import org.gcube.data.analysis.tabulardata.cube.data.connection.unprivileged.Unprivileged;
@@ -35,6 +35,8 @@ public class SQLDatabaseWrangler implements DatabaseWrangler {
 
 	private static Logger log = LoggerFactory.getLogger(SQLDatabaseWrangler.class);
 
+	private static RandomString randomString = new RandomString(32);
+	
 	private DatabaseConnectionProvider adminConnectionProvider;
 
 	private DatabaseConnectionProvider unprivilegedConnectionProvider;
@@ -219,7 +221,7 @@ public class SQLDatabaseWrangler implements DatabaseWrangler {
 		int count = 0;
 
 		do {
-			tableName = RandomStringUtils.random(32, true, false).toLowerCase();
+			tableName = randomString.nextString().toLowerCase();
 			log.debug("Generated table name: " + tableName);
 			Connection connection = null;
 			Statement statement = null;
@@ -341,4 +343,34 @@ public class SQLDatabaseWrangler implements DatabaseWrangler {
 	public void createUniqueIndex(String tableName, String columnName) {
 		executeQuery(String.format("CREATE UNIQUE INDEX ON %s ( %s );", tableName, columnName));
 	}
+	
+	public static class RandomString {
+
+		  private static final char[] symbols;
+
+		  static {
+		    StringBuilder tmp = new StringBuilder();
+		    for (char ch = '0'; ch <= '9'; ++ch)
+		      tmp.append(ch);
+		    for (char ch = 'a'; ch <= 'z'; ++ch)
+		      tmp.append(ch);
+		    symbols = tmp.toString().toCharArray();
+		  }   
+
+		  private final Random random = new Random();
+
+		  private final char[] buf;
+
+		  public RandomString(int length) {
+		    if (length < 1)
+		      throw new IllegalArgumentException("length < 1: " + length);
+		    buf = new char[length];
+		  }
+
+		  public String nextString() {
+		    for (int idx = 0; idx < buf.length; ++idx) 
+		      buf[idx] = symbols[random.nextInt(symbols.length)];
+		    return new String(buf);
+		  }
+		}
 }
diff --git a/cube-manager-metadata/pom.xml b/cube-manager-metadata/pom.xml
index 37ca31d..63556c3 100644
--- a/cube-manager-metadata/pom.xml
+++ b/cube-manager-metadata/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.gcube.data.analysis.tabulardata</groupId>
 		<artifactId>cube-manager-parent</artifactId>
-		<version>3.5.2-SNAPSHOT</version>
+		<version>3.5.3-SNAPSHOT</version>
 	</parent>
 	<artifactId>cube-manager-metadata</artifactId>
 	<name>Cube Manager Metadata</name>
diff --git a/cube-manager/pom.xml b/cube-manager/pom.xml
index bbff2ad..ed08e7c 100644
--- a/cube-manager/pom.xml
+++ b/cube-manager/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.gcube.data.analysis.tabulardata</groupId>
 		<artifactId>cube-manager-parent</artifactId>
-		<version>3.5.2-SNAPSHOT</version>
+		<version>3.5.3-SNAPSHOT</version>
 	</parent>
 	<artifactId>cube-manager</artifactId>
 	<name>Cube Manager</name>
diff --git a/cube-manager/src/main/java/org/gcube/data/analysis/tabulardata/cube/tablemanagers/DefaultTableCreator.java b/cube-manager/src/main/java/org/gcube/data/analysis/tabulardata/cube/tablemanagers/DefaultTableCreator.java
index ed8e006..2532478 100644
--- a/cube-manager/src/main/java/org/gcube/data/analysis/tabulardata/cube/tablemanagers/DefaultTableCreator.java
+++ b/cube-manager/src/main/java/org/gcube/data/analysis/tabulardata/cube/tablemanagers/DefaultTableCreator.java
@@ -10,8 +10,8 @@ import java.util.Set;
 
 import javax.enterprise.event.Event;
 
-import org.apache.commons.lang.RandomStringUtils;
 import org.gcube.data.analysis.tabulardata.cube.data.DatabaseWrangler;
+import org.gcube.data.analysis.tabulardata.cube.data.SQLDatabaseWrangler.RandomString;
 import org.gcube.data.analysis.tabulardata.cube.events.TableCreationEvent;
 import org.gcube.data.analysis.tabulardata.cube.exceptions.NoSuchTableException;
 import org.gcube.data.analysis.tabulardata.cube.exceptions.TableCreationException;
@@ -40,6 +40,8 @@ public abstract class DefaultTableCreator implements TableCreator {
 		
 	private static Logger logger = LoggerFactory.getLogger(DefaultTableCreator.class);
 	
+	private static RandomString randomString = new RandomString(6);
+	
 	protected DatabaseWrangler dbWrangler;
 	protected CubeMetadataWrangler mdWrangler;
 	protected TableManager tableManager;
@@ -354,7 +356,7 @@ public abstract class DefaultTableCreator implements TableCreator {
 	public static class ColumnNameGenerator {
 
 		public static String generateColumnName() {
-			return RandomStringUtils.random(6, true, false).toLowerCase();
+			return randomString.nextString().toLowerCase();
 		}
 
 	}
diff --git a/pom.xml b/pom.xml
index 46269ff..5bd2a89 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.gcube.data.analysis.tabulardata</groupId>
 	<artifactId>cube-manager-parent</artifactId>
-	<version>3.5.2-SNAPSHOT</version>
+	<version>3.5.3-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<parent>