diff --git a/requirements.txt b/requirements.txt
index a562200..7f25569 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ ase==3.20.0
 cloudpickle==1.3.0
 -e git+git://github.com/risilab/cormorant.git@6a4b6370e8a7cfd7bf253ecfb5783b6d7787ba3f#egg=cormorant
 cycler==0.10.0
-future==0.18.2
+future==0.18.3
 gym==0.17.2
 h5py==2.10.0
 importlib-metadata==1.7.0