diff --git a/requirements_dev.txt b/requirements_dev.txt
index ee8f88d4c468ac1e6d670942167ded95a5143dcd..86cfb8693587db0fe3a35bacbf6f2bce690a850b 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -19,7 +19,4 @@ importlib-resources>=1.0.1,<2
 six>=1.12.0
 timeout-decorator>=0.4.1
 attrs
-gym==0.14.0
-flask
-flask_cors
-flask_socketio
+gym==0.14.0
\ No newline at end of file