diff --git a/setup.py b/setup.py
index cb377644..64ba3f1b 100644
--- a/setup.py
+++ b/setup.py
@@ -20,13 +20,13 @@ def from_file(filename, fallback):
 tests_require = [
     'coverage==4.4',
     'flake8==3.2.1',
-    'hypothesis==3.8.3',
+    'hypothesis==3.9.0',
     'hypothesis-pytest==0.19.0',
     'py==1.4.31',
     'pydocstyle==2.0.0',
     'pytest==3.0.7',
     'pytest-benchmark==3.1.0a2',
-    'pytest-cov==2.5.0',
+    'pytest-cov==2.5.1',
     'Sphinx==1.5.5',
     'sortedcollections==0.4.2',
     'sortedcontainers==1.5.5',