diff --git a/build.gradle b/build.gradle
index dcf40df..4ff1039 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@ plugins {
 }
 
 group = 'com.dmtavt'
-version = '1.2.b03'
+version = '1.2.1'
 
 description = """DeltaMass - detection and visualization of common mass shifts in proteomic searches."""
 
diff --git a/src/main/java/com/dmtavt/deltamass/Bundle.properties b/src/main/java/com/dmtavt/deltamass/Bundle.properties
index 35438c1..9b850b2 100644
--- a/src/main/java/com/dmtavt/deltamass/Bundle.properties
+++ b/src/main/java/com/dmtavt/deltamass/Bundle.properties
@@ -1 +1 @@
-deltamass.version.current=1.1
+deltamass.version.current=1.2.1
diff --git a/src/main/java/com/dmtavt/deltamass/DeltaMassInfo.java b/src/main/java/com/dmtavt/deltamass/DeltaMassInfo.java
index 7e2ddf8..72c4956 100644
--- a/src/main/java/com/dmtavt/deltamass/DeltaMassInfo.java
+++ b/src/main/java/com/dmtavt/deltamass/DeltaMassInfo.java
@@ -20,7 +20,7 @@ public final class DeltaMassInfo {
   private static final EventBus bus = EventBus.getDefault();
 
   public static final String Name = "DeltaMass";
-  public static final String Ver = "1.2.b03";
+  public static final String Ver = "1.2.1";
 
   private static final String PROP_VER = "deltamass.version.current";
   private static final String PROP_DOWNLOAD_URL = "deltamass.download.url";