diff --git a/requirements.txt b/requirements.txt
index 2ff981e..14c4fe7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,16 +4,16 @@ future==0.17.1
 kiwisolver==1.1.0
 matplotlib~=3.0
 numpy~=1.16
-pandas~=1.0
+pandas>=1.0,<3
 pyparsing==2.4.7
-python-dateutil==2.8.1
+python-dateutil~=2.8.1
 pytz==2020.1
 scikit-learn
 scipy
 seaborn==0.9.1
 six==1.15.0
 subprocess32==3.5.3
-torch~=1.9
+torch>=1.9,<3
 torchvision
 tqdm~=4.23
 h5py