diff --git a/Makefile.config b/Makefile.config
index 9416aba..fba79d2 100644
--- a/Makefile.config
+++ b/Makefile.config
@@ -1243,7 +1243,7 @@ EXT=
 
 # The calc version in the form of x.y.z.w
 #
-VERSION= 2.15.0.5
+VERSION= 2.15.0.6
 
 # The calc major version in the form of x.y.z
 #
diff --git a/version.h b/version.h
index 711fee6..1508e6b 100644
--- a/version.h
+++ b/version.h
@@ -64,7 +64,7 @@
 #define MAJOR_VER	2	/* level 1: major library version */
 #define MINOR_VER	15	/* level 2: minor library version */
 #define MAJOR_PATCH	0	/* level 3: major software version level */
-#define MINOR_PATCH	5	/* level 4: minor software version level */
+#define MINOR_PATCH	6	/* level 4: minor software version level */
 
 
 #endif /* !INCLUDE_VERSION_H*/