diff --git a/requirements.txt b/requirements.txt
index 8f855d4..a7fc895 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 scikit-learn
-numpy
+numpy==1.23.0
 matplotlib
 scipy
 pybullet
@@ -16,3 +16,5 @@ sharedmem
 opencv-python
 gdown
 tensorboard
+cloudpickle
+pygame