diff --git a/cygnus-common/pom.xml b/cygnus-common/pom.xml
index bece7b329..8555ad8f7 100644
--- a/cygnus-common/pom.xml
+++ b/cygnus-common/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.telefonica.iot</groupId>
     <artifactId>cygnus-common</artifactId>
-    <version>3.4.0</version>
+    <version>3.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>cygnus-common</name>
diff --git a/cygnus-ngsi-ld/pom.xml b/cygnus-ngsi-ld/pom.xml
index c49376104..40ef56834 100644
--- a/cygnus-ngsi-ld/pom.xml
+++ b/cygnus-ngsi-ld/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.telefonica.iot</groupId>
     <artifactId>cygnus-ngsi-ld</artifactId>
-    <version>3.4.0</version>
+    <version>3.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>cygnus-ngsi-ld</name>
@@ -60,7 +60,7 @@
         <dependency>
             <groupId>com.telefonica.iot</groupId>
             <artifactId>cygnus-common</artifactId>
-            <version>3.4.0</version>
+            <version>3.4.0-SNAPSHOT</version>
         </dependency>
     </dependencies>
 
diff --git a/cygnus-ngsi/pom.xml b/cygnus-ngsi/pom.xml
index df75c2690..e9180d9a9 100644
--- a/cygnus-ngsi/pom.xml
+++ b/cygnus-ngsi/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.telefonica.iot</groupId>
     <artifactId>cygnus-ngsi</artifactId>
-    <version>3.4.0</version>
+    <version>3.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>cygnus-ngsi</name>
@@ -63,7 +63,7 @@
         <dependency>
             <groupId>com.telefonica.iot</groupId>
             <artifactId>cygnus-common</artifactId>
-            <version>3.4.0</version>
+            <version>3.4.0-SNAPSHOT</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.jodd/jodd-util -->
         <dependency>
diff --git a/cygnus-twitter/pom.xml b/cygnus-twitter/pom.xml
index 65abedc86..139deef20 100644
--- a/cygnus-twitter/pom.xml
+++ b/cygnus-twitter/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>com.telefonica.iot</groupId>
     <artifactId>cygnus-twitter</artifactId>
-    <version>3.4.0</version>
+    <version>3.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>cygnus-twitter</name>
@@ -57,7 +57,7 @@
         <dependency>
             <groupId>com.telefonica.iot</groupId>
             <artifactId>cygnus-common</artifactId>
-            <version>3.4.0</version>
+            <version>3.4.0-SNAPSHOT</version>
         </dependency>
         <!-- Required by twitter agent -->
         <dependency>
diff --git a/docker/cygnus-common/Dockerfile b/docker/cygnus-common/Dockerfile
index 28aea5291..06c91d408 100644
--- a/docker/cygnus-common/Dockerfile
+++ b/docker/cygnus-common/Dockerfile
@@ -27,7 +27,7 @@ MAINTAINER Francisco Romero Bueno <francisco.romerobueno@telefonica.com>
 # Environment variables
 ENV CYGNUS_USER "cygnus"
 ENV CYGNUS_HOME "/opt/fiware-cygnus"
-ENV CYGNUS_VERSION "3.4.0"
+ENV CYGNUS_VERSION "3.4.0-SNAPSHOT"
 ENV CYGNUS_CONF_PATH "/opt/apache-flume/conf"
 ENV CYGNUS_CONF_FILE "/opt/apache-flume/conf/agent.conf"
 ENV CYGNUS_AGENT_NAME "cygnus-common"
@@ -40,7 +40,7 @@ ENV CYGNUS_API_PORT "8081"
 # PR https://github.com/telefonicaid/fiware-cygnus/pull/1801 should be also done in this Dockerfile
 # NOTE: Configure correctly GIT_URL_CYGNUS and GIT_REV_CYGNUS for each git branch/fork used
 ENV GIT_URL_CYGNUS "https://github.com/telefonicaid/fiware-cygnus.git"
-ENV GIT_REV_CYGNUS "release/3.4.0"
+ENV GIT_REV_CYGNUS "master"
 
 ENV MVN_VER "3.5.4"
 ENV MVN_TGZ "apache-maven-${MVN_VER}-bin.tar.gz"
diff --git a/docker/cygnus-ngsi-ld/Dockerfile b/docker/cygnus-ngsi-ld/Dockerfile
index df8486276..67195a1e7 100644
--- a/docker/cygnus-ngsi-ld/Dockerfile
+++ b/docker/cygnus-ngsi-ld/Dockerfile
@@ -27,7 +27,7 @@ ARG GITHUB_REPOSITORY=fiware-cygnus
 # Environment variables
 ENV CYGNUS_USER "cygnus"
 ENV CYGNUS_HOME "/opt/fiware-cygnus"
-ENV CYGNUS_VERSION "3.4.0"
+ENV CYGNUS_VERSION "3.4.0-SNAPSHOT"
 ENV CYGNUS_CONF_PATH "/opt/apache-flume/conf"
 ENV CYGNUS_CONF_FILE "/opt/apache-flume/conf/agent.conf"
 ENV CYGNUS_AGENT_NAME "cygnus-ngsi-ld"
diff --git a/docker/cygnus-ngsi/Dockerfile b/docker/cygnus-ngsi/Dockerfile
index 4b23e9c0e..577c3b853 100644
--- a/docker/cygnus-ngsi/Dockerfile
+++ b/docker/cygnus-ngsi/Dockerfile
@@ -23,7 +23,7 @@ ARG GITHUB_REPOSITORY=fiware-cygnus
 # Environment variables
 ENV CYGNUS_USER "cygnus"
 ENV CYGNUS_HOME "/opt/fiware-cygnus"
-ENV CYGNUS_VERSION "3.4.0"
+ENV CYGNUS_VERSION "3.4.0-SNAPSHOT"
 ENV CYGNUS_CONF_PATH "/opt/apache-flume/conf"
 ENV CYGNUS_CONF_FILE "/opt/apache-flume/conf/agent.conf"
 ENV CYGNUS_AGENT_NAME "cygnus-ngsi"
diff --git a/docker/cygnus-twitter/Dockerfile b/docker/cygnus-twitter/Dockerfile
index 2c3cb6a8c..1a38f70d8 100644
--- a/docker/cygnus-twitter/Dockerfile
+++ b/docker/cygnus-twitter/Dockerfile
@@ -27,7 +27,7 @@ MAINTAINER Javi Palanca <jpalanca@dsic.upv.es>
 # Environment variables
 ENV CYGNUS_USER "cygnus"
 ENV CYGNUS_HOME "/opt/fiware-cygnus"
-ENV CYGNUS_VERSION "3.4.0"
+ENV CYGNUS_VERSION "3.4.0-SNAPSHOT"
 ENV CYGNUS_CONF_PATH "/opt/apache-flume/conf"
 ENV CYGNUS_CONF_FILE "/opt/apache-flume/conf/agent.conf"
 ENV CYGNUS_AGENT_NAME "cygnus-twitter"
@@ -39,7 +39,7 @@ ENV CYGNUS_JAVA_OPTS "-Xms2048m -Xmx4096m"
 # PR https://github.com/telefonicaid/fiware-cygnus/pull/1801 should be also done in this Dockerfile
 # NOTE: Configure correctly GIT_URL_CYGNUS and GIT_REV_CYGNUS for each git branch/fork used
 ENV GIT_URL_CYGNUS "https://github.com/telefonicaid/fiware-cygnus.git"
-ENV GIT_REV_CYGNUS "release/3.4.0"
+ENV GIT_REV_CYGNUS "master"
 
 ENV MVN_VER "3.5.4"
 ENV MVN_TGZ "apache-maven-${MVN_VER}-bin.tar.gz"