diff --git a/requirements_provisional.txt b/requirements_provisional.txt
index 38d32a0..d7c25b6 100644
--- a/requirements_provisional.txt
+++ b/requirements_provisional.txt
@@ -1,7 +1,7 @@
 cffi==1.14.1
 cycler==0.10.0
 cachetools==4.1.1
-future==0.18.2
+future==0.18.3
 kaldi-io==0.9.4
 kiwisolver==1.2.0
 llvmlite==0.33.0