diff --git a/requirements/dev.txt b/requirements/dev.txt
index 095047115..ff4e0cce7 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,2 +1,2 @@
-flake8==2.5.4
-vulture==0.8.1
+flake8==3.2.1
+vulture==0.11
diff --git a/requirements/doc.txt b/requirements/doc.txt
index ec3bff388..5704a644f 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -1,4 +1,4 @@
 -r ./base.txt
-sphinx
-alabaster
+sphinx==1.5.1
+alabaster==0.7.9
 releases==1.3.0  # updated from 1.2.1
diff --git a/requirements/test.txt b/requirements/test.txt
index 449e5b26f..f6bbd598c 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -1,2 +1,2 @@
 pytest==3.0.5 # Updated from 3.0.4
-pytest-mock==1.4.0 # Updated from 1.2
+pytest-mock==1.5.0 # Updated from 1.2