diff --git a/CMakeLists.txt b/CMakeLists.txt
index 77e04a5e..67885c93 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ project (Hyperscan C CXX)
 
 set (HS_MAJOR_VERSION 4)
 set (HS_MINOR_VERSION 0)
-set (HS_PATCH_VERSION 0)
+set (HS_PATCH_VERSION 1)
 set (HS_VERSION ${HS_MAJOR_VERSION}.${HS_MINOR_VERSION}.${HS_PATCH_VERSION})
 
 string (TIMESTAMP BUILD_DATE "%Y-%m-%d")