diff --git a/requirements_dev.txt b/requirements_dev.txt
index 36c8fa2..f9fc402 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -5,7 +5,6 @@ watchdog==0.8.3
 flake8==3.3.0
 tox==2.7.0
 coverage==4.4.1
-Sphinx==1.6.2
+Sphinx==1.6.1
 cryptography==1.9
-PyYAML==3.12
-
+PyYAML==3.12
\ No newline at end of file