diff --git a/Dockerfile b/Dockerfile
index 3501ee25dfcff037d0be924aec06372b6ff2f5e6..fff33d477186693413c6f83f3831ed0422592452 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -35,7 +35,7 @@ RUN pip install plotly
 
 # Install for -> artifint
 RUN pip install python-constraint
-RUN pip install ortools==9.6.2534
+RUN pip install ortools==9.5.2237
 #RUN pip install tensorflow_decision_forests
 
 # Install for -> windkanl