diff --git a/requirements.txt b/requirements.txt
index f219720..743cd2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ nilearn==0.4.2
 sklearn==0.0
 cython==0.29
 scipy==1.1.0
-future==0.17.1
+future==0.18.3
 coverage==4.5.1
 scikit-learn==0.20.0
 pillow