diff --git a/tests/requirements.txt b/tests/requirements.txt
index 6adafe0..90c2821 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,13 +1,13 @@
-coverage==4.4.1
+coverage==4.5.1
 docutils==0.14
-flake8==3.4.1
-isort==4.2.15
+flake8==3.5.0
+isort==4.3.4
 pycodestyle==2.3.1
 pyflakes==1.6.0
-pytest==3.2.2
+pytest==3.4.1
 pytest-cov==2.5.1
 pytest-isort==0.1.0
-pytest-mock==1.6.3
-pytest-sugar==0.9.0
+pytest-mock==1.7.1
+pytest-sugar==0.9.1
 pytest-toolbox==0.2
 Pygments==2.2.0