diff --git a/CHANGELOG.md b/CHANGELOG.md
index 602c491..15f15fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 2.3.3.1 (February, 21, 2017)
+- Fixed problem with compatibility with Estimote SDK 4.13.1. 
+
 ## 2.3.3 (February, 9, 2017)
 - Fixed a major responsiveness and positioning issue that occurred on iOS 10 devices while navigating inside locations with large number of beacons.
 
diff --git a/EstimoteIndoorLocationSDK/Headers/EILIndoorSDK.h b/EstimoteIndoorLocationSDK/Headers/EILIndoorSDK.h
index b053e81..b007174 100644
--- a/EstimoteIndoorLocationSDK/Headers/EILIndoorSDK.h
+++ b/EstimoteIndoorLocationSDK/Headers/EILIndoorSDK.h
@@ -1,7 +1,7 @@
 // Copyright (c) 2015 Estimote. All rights reserved.
 
 /** Version of this iOS Indoor Location SDK. */
-#define EIL_IOS_INDOOR_SDK_VERSION_STRING @"2.3.3"
+#define EIL_IOS_INDOOR_SDK_VERSION_STRING @"2.3.3.1"
 
 
 /** Library header, import this to import all of the public types in the Indoor SDK. */
diff --git a/EstimoteIndoorLocationSDK/libEstimoteIndoorSDK.a b/EstimoteIndoorLocationSDK/libEstimoteIndoorSDK.a
index 82043e0..306b33b 100644
Binary files a/EstimoteIndoorLocationSDK/libEstimoteIndoorSDK.a and b/EstimoteIndoorLocationSDK/libEstimoteIndoorSDK.a differ