diff --git a/crowddynamics/requirements.txt b/crowddynamics/requirements.txt
index 277f94a..46e36be 100644
--- a/crowddynamics/requirements.txt
+++ b/crowddynamics/requirements.txt
@@ -21,7 +21,7 @@ colorama==0.3.9
 colorlog==2.10.0
 
 ## Core
-numpy==1.12.1
+numpy==1.21.0
 numba==0.33.0
 scipy==0.19.0
 scikit-image==0.13.0