diff --git a/octomap/CMakeLists.txt b/octomap/CMakeLists.txt
index 6fc7c570..9cd49cd1 100644
--- a/octomap/CMakeLists.txt
+++ b/octomap/CMakeLists.txt
@@ -6,7 +6,7 @@ ENABLE_TESTING()
 # version (e.g. for packaging)
 set(OCTOMAP_MAJOR_VERSION 1)
 set(OCTOMAP_MINOR_VERSION 5)
-set(OCTOMAP_PATCH_VERSION 3)
+set(OCTOMAP_PATCH_VERSION 4)
 set(OCTOMAP_VERSION ${OCTOMAP_MAJOR_VERSION}.${OCTOMAP_MINOR_VERSION}.${OCTOMAP_PATCH_VERSION})
 if(COMMAND cmake_policy)
   cmake_policy(SET CMP0003 NEW)