diff --git a/docs/_rapidmix.doxyfile b/docs/_rapidmix.doxyfile
index 9e073fc5706b08a60523a4b00ca39658b7384cfe..d5110d725738373100458d40b81617de09a53602 100644
--- a/docs/_rapidmix.doxyfile
+++ b/docs/_rapidmix.doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "Rapid-Mix API"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "v2.0.0"
+PROJECT_NUMBER         = "v2.2.0"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/src/rapidmix.h b/src/rapidmix.h
index 264a4f2c09da943640f5c8dc3ab755d68a6bda97..4afa45f06baa9f33e6fcfcd5f8e257727c9356c7 100644
--- a/src/rapidmix.h
+++ b/src/rapidmix.h
@@ -36,10 +36,10 @@
 #define rapidmix_h
 
 #define RAPIDMIX_VERSION_MAJOR 2
-#define RAPIDMIX_VERSION_MINOR 1
+#define RAPIDMIX_VERSION_MINOR 2
 #define RAPIDMIX_VERSION_PATCH 0
-#define RAPIDMIX_VERSION "2.0.1"
-#define RAPIDMIX_REVISION "13-JULY-2017"
+#define RAPIDMIX_VERSION "2.2.0"
+#define RAPIDMIX_REVISION "27-SEPTEMBER-2017"
 
 #include "machineLearning.h"
 #include "trainingData.h"