diff --git a/requirements.txt b/requirements.txt
index 24a28b9cd53ed84058f57bd3faabf38ea9c5c22f..689d6eca1fbd17e89e025c20618669c7ec54ec37 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,3 @@
 lxml==3.6.4
 networkx==1.11
 pygraphviz==1.3.1
-pyCryptoMS==0.1.1