diff --git a/requirements.txt b/requirements.txt
index 326b28f4684e1ba1d58e9546f8c5a59d5b372a2d..7f6f854e4d14d85df97e06d2115113cec88d94f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,6 @@ aicrowd-api
 aicrowd-gym
 numpy
 scipy
-nle>=0.7.2
+nle==0.7.3
 tqdm
 wandb