diff --git a/requirements.txt b/requirements.txt
index bd90c8c..3d86b40 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ requests==2.9.1
 # Secondary requirements
 appdirs==1.4.2
 cffi==1.9.1
-cryptography==1.7.2
+cryptography<1.5  # see https://github.com/burnash/gspread/issues/407
 idna==2.4
 pyasn1==0.2.3
 packaging==16.8