diff --git a/requirements.txt b/requirements.txt
index e1b2b06..0f99aef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 pytest==3.3.2
 py==1.10.1
 setuptools==39.0.1
-wheel==0.31.0
+wheel==0.38.1
 numpy>=1.15.0
 scipy>=1.1.0
 xarray>=0.10.8