diff --git a/requirements.txt b/requirements.txt
index 50efc38d481cced7044eaea6845b83da16224a9c..5e61c2df93c8fe0a260ea4707cbba52e5b929713 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
-pandas~=1.3.4
+pandas~=1.1.5
 setuptools~=57.0.0
 numpy~=1.20.3
 numba~=0.54.1
-scipy~=1.7.1
\ No newline at end of file
+scipy~=1.7.1