diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6891cd30..8e0d83e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.20)
 
 project (
   IPhreeqc
-  VERSION 3.8.2
+  VERSION 3.8.5
   LANGUAGES CXX C
   )