diff --git a/appveyor.yml b/appveyor.yml
index 6dbadc9f..032a38c5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 0.1.3.{build}
+version: 0.1.4.{build}
 
 environment:
   matrix:
diff --git a/src/version.c b/src/version.c
index 15e0e8c6..3272ff61 100644
--- a/src/version.c
+++ b/src/version.c
@@ -18,7 +18,7 @@
 #error "API version mismatch!"
 #endif
 
-#define MDBX_VERSION_RELEASE 3
+#define MDBX_VERSION_RELEASE 4
 #define MDBX_VERSION_REVISION 1
 
 /*LIBMDBX_EXPORTS*/ const mdbx_version_info mdbx_version = {