diff --git a/VERSION b/VERSION
index 55a1cdef1..1a73c7758 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.89
+2.90
diff --git a/src/LinearMath/btScalar.h b/src/LinearMath/btScalar.h
index 86d94e897..a8f88fd98 100644
--- a/src/LinearMath/btScalar.h
+++ b/src/LinearMath/btScalar.h
@@ -25,7 +25,7 @@ subject to the following restrictions:
 #include <float.h>
 
 /* SVN $Revision$ on $Date$ from http://bullet.googlecode.com*/
-#define BT_BULLET_VERSION 289
+#define BT_BULLET_VERSION 290
 
 inline int btGetVersion()
 {
diff --git a/src/LinearMath/btSerializer.h b/src/LinearMath/btSerializer.h
index 2ee712047..d7dec27b8 100644
--- a/src/LinearMath/btSerializer.h
+++ b/src/LinearMath/btSerializer.h
@@ -480,8 +480,8 @@ public:
 		}
 
 		buffer[9] = '2';
-		buffer[10] = '8';
-		buffer[11] = '9';
+		buffer[10] = '9';
+		buffer[11] = '0';
 	}
 
 	virtual void startSerialization()