diff --git a/python/requirements.txt b/python/requirements.txt
index ef7181b4382d09b98c830f7ada6ca8990951138e..5e081f5e85b6e0f645991ab70874d04ab93e3106 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -7,7 +7,8 @@ matplotlib<=2.2.4 ; python_version<"3.6"
 scipy>=0.19.0, <=1.2.1 ; python_version<"3.5"
 nltk>=3.2.2, <=3.4 ; python_version<"3.5"
 matplotlib ; python_version>="3.6"
-scipy<=1.3.1 ; python_version>="3.5"
+scipy<=1.3.1 ; python_version=="3.5"
+scipy ; python_version>"3.5"
 nltk ; python_version>="3.5"
 rarfile
 Pillow