diff --git a/rskj-core/src/main/resources/version.properties b/rskj-core/src/main/resources/version.properties
index 427be1a145f..4eb6b625b2a 100644
--- a/rskj-core/src/main/resources/version.properties
+++ b/rskj-core/src/main/resources/version.properties
@@ -1,2 +1,2 @@
-versionNumber='1.2.0'
+versionNumber='1.2.1'
 modifier="WASABI"
diff --git a/rskj-core/src/test/java/co/rsk/mine/MinerServerTest.java b/rskj-core/src/test/java/co/rsk/mine/MinerServerTest.java
index 55a5c2f9b86..f352d29382e 100644
--- a/rskj-core/src/test/java/co/rsk/mine/MinerServerTest.java
+++ b/rskj-core/src/test/java/co/rsk/mine/MinerServerTest.java
@@ -803,7 +803,7 @@ public void extraDataNotInitializedWithClientData() {
 
         byte[] secondItem = decodedExtraData.get(1).getRLPData();
         assertNotNull(secondItem);
-        assertEquals("SNAPSHOT-cb7f28e", new String(secondItem));
+        assertEquals("WASABI-cb7f28e", new String(secondItem));
     }
 
     @Test
@@ -833,7 +833,7 @@ public void extraDataWithClientData() {
 
         byte[] secondItem = decodedExtraData.get(1).getRLPData();
         assertNotNull(secondItem);
-        assertEquals("SNAPSHOT-cb7f28e", new String(secondItem));
+        assertEquals("WASABI-cb7f28e", new String(secondItem));
 
         byte[] thirdItem = decodedExtraData.get(2).getRLPData();
         assertNotNull(thirdItem);
@@ -868,11 +868,11 @@ public void extraDataWithClientDataMoreThan32Bytes() {
 
         byte[] secondItem = decodedExtraData.get(1).getRLPData();
         assertNotNull(secondItem);
-        assertEquals("SNAPSHOT-cb7f28e", new String(secondItem));
+        assertEquals("WASABI-cb7f28e", new String(secondItem));
 
         byte[] thirdItem = decodedExtraData.get(2).getRLPData();
         assertNotNull(thirdItem);
-        assertEquals("tincho is th", new String(thirdItem));
+        assertEquals("tincho is the ", new String(thirdItem));
     }
 
     private BtcBlock getMergedMiningBlockWithOnlyCoinbase(MinerWork work) {