diff --git a/requirements.txt b/requirements.txt
index 0b4c4bd..b8184a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ mpmath==1.3.0
 multidict==6.0.4
 multiprocess==0.70.14
 networkx==2.6.3
-numpy==1.24.3
+numpy==1.21.6
 packaging==23.1
 pandas==2.0.1
 pyarrow==12.0.0