diff --git a/src/constants.F90 b/src/constants.F90
index 909146014..ef0d7c8ef 100644
--- a/src/constants.F90
+++ b/src/constants.F90
@@ -8,7 +8,7 @@ module constants
   ! OpenMC major, minor, and release numbers
   integer, parameter :: VERSION_MAJOR   = 0
   integer, parameter :: VERSION_MINOR   = 5
-  integer, parameter :: VERSION_RELEASE = 3
+  integer, parameter :: VERSION_RELEASE = 4
 
   ! Revision numbers for binary files
   integer, parameter :: REVISION_STATEPOINT       = 11