diff --git a/requirements_dev.txt b/requirements_dev.txt
index fed77502..05784047 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,16 +1,16 @@
 -e .
 bump2version==0.5.10
-wheel==0.31.1
-watchdog==0.8.3
+wheel==0.32.0
+watchdog==0.9.0
 flake8==3.5.0
 tox==3.4.0
 coverage==4.5.1
-Sphinx==1.7.6
+Sphinx==1.8.1
 # only used for setup script
 # cryptography==1.0.1
-py==1.5.3
-pytest==3.7.0
+py==1.6.0
+pytest==3.8.1
 PyYAML==3.13
-prospector[with_everything]==1.1.1
+prospector[with_everything]==1.1.2
 python-dateutil>=2.6.0
 requests>=2.18