diff --git a/android-app-core/pom.xml b/android-app-core/pom.xml
index a826ecee..a0ce2f30 100644
--- a/android-app-core/pom.xml
+++ b/android-app-core/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>org.solovyev.android</groupId>
         <artifactId>calculatorpp-parent</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.4-SNAPSHOT</version>
     </parent>
 
     <groupId>org.solovyev.android</groupId>
     <artifactId>calculatorpp-android-app-core</artifactId>
-    <version>1.5.3</version>
+    <version>1.5.4-SNAPSHOT</version>
 	<name>Calculator++ Application Core</name>
 	<packaging>apklib</packaging>
 
diff --git a/android-app-onscreen/pom.xml b/android-app-onscreen/pom.xml
index 10648ff4..f174239d 100644
--- a/android-app-onscreen/pom.xml
+++ b/android-app-onscreen/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>org.solovyev.android</groupId>
         <artifactId>calculatorpp-parent</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.4-SNAPSHOT</version>
     </parent>
 
     <groupId>org.solovyev.android</groupId>
     <artifactId>calculatorpp-android-app-onscreen</artifactId>
-    <version>1.5.3</version>
+    <version>1.5.4-SNAPSHOT</version>
     <name>Calculator++ Application Onscreen</name>
     <packaging>apklib</packaging>
 
diff --git a/android-app-test/pom.xml b/android-app-test/pom.xml
index 2fa03b05..8aa358df 100644
--- a/android-app-test/pom.xml
+++ b/android-app-test/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.solovyev.android</groupId>
         <artifactId>calculatorpp-parent</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.4-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/android-app-widget/pom.xml b/android-app-widget/pom.xml
index 27139255..a37081cf 100644
--- a/android-app-widget/pom.xml
+++ b/android-app-widget/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>org.solovyev.android</groupId>
         <artifactId>calculatorpp-parent</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.4-SNAPSHOT</version>
     </parent>
 
     <groupId>org.solovyev.android</groupId>
     <artifactId>calculatorpp-android-app-widget</artifactId>
-    <version>1.5.3</version>
+    <version>1.5.4-SNAPSHOT</version>
 	<name>Calculator++ Application Widget</name>
 	<packaging>apklib</packaging>
 
diff --git a/android-app/pom.xml b/android-app/pom.xml
index f49c966e..f8f5e968 100644
--- a/android-app/pom.xml
+++ b/android-app/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.solovyev.android</groupId>
         <artifactId>calculatorpp-parent</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.4-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/core/pom.xml b/core/pom.xml
index 8e87dcb6..c24e4357 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>org.solovyev.android</groupId>
         <artifactId>calculatorpp-parent</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.4-SNAPSHOT</version>
     </parent>
 
     <groupId>org.solovyev.android</groupId>
     <artifactId>calculatorpp-core</artifactId>
-    <version>1.5.3</version>
+    <version>1.5.4-SNAPSHOT</version>
     <name>Calculator++ Core</name>
 
     <packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index 9f7fcff1..32faf05c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,14 +12,14 @@
     <groupId>org.solovyev.android</groupId>
     <artifactId>calculatorpp-parent</artifactId>
     <packaging>pom</packaging>
-    <version>1.5.3</version>
+    <version>1.5.4-SNAPSHOT</version>
     <name>Calculator++</name>
 
     <scm>
         <connection>scm:git:git@github.com:serso/android-calculatorpp.git</connection>
         <developerConnection>scm:git:git@github.com:serso/android-calculatorpp.git</developerConnection>
         <url>http://github.com/serso/android-calculatorpp</url>
-        <tag>release-1.5.3</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <modules>
@@ -43,27 +43,27 @@
 			<dependency>
 				<groupId>org.solovyev.android</groupId>
 				<artifactId>calculatorpp-core</artifactId>
-				<version>1.5.3</version>
+				<version>1.5.4-SNAPSHOT</version>
 			</dependency>
 
 			<dependency>
 				<groupId>org.solovyev.android</groupId>
 				<artifactId>calculatorpp-android-app-core</artifactId>
-				<version>1.5.3</version>
+				<version>1.5.4-SNAPSHOT</version>
 				<type>apklib</type>
 			</dependency>
 
 			<dependency>
 				<groupId>org.solovyev.android</groupId>
 				<artifactId>calculatorpp-android-app-widget</artifactId>
-				<version>1.5.3</version>
+				<version>1.5.4-SNAPSHOT</version>
 				<type>apklib</type>
 			</dependency>
 
             <dependency>
                 <groupId>org.solovyev.android</groupId>
                 <artifactId>calculatorpp-android-app-onscreen</artifactId>
-                <version>1.5.3</version>
+                <version>1.5.4-SNAPSHOT</version>
                 <type>apklib</type>
             </dependency>