diff --git a/src/csip.c b/src/csip.c
index 5ce063b..f5548c6 100644
--- a/src/csip.c
+++ b/src/csip.c
@@ -9,7 +9,7 @@
 
 #define CSIP_MAJOR_VERSION 0
 #define CSIP_MINOR_VERSION 4
-#define CSIP_PATCH_VERSION 4
+#define CSIP_PATCH_VERSION 5
 
 /* objective type */
 typedef int CSIP_OBJTYPE;