diff --git a/requirements.txt b/requirements.txt
index 5e3248cae3b35153a6d1aa3eca2725add2d75b69..d64a21ee8f5a1a6af8b36de9bcdf97dbd96ad9aa 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,4 +13,4 @@ six==1.12.0
 pandas==0.23.3
 m2r==0.2.1
 docutils==0.12
-yaml==3.12
\ No newline at end of file
+pyyaml==3.12
\ No newline at end of file