diff --git a/requirements.txt b/requirements.txt
index 31d0e3c06..f1f26171b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,4 @@ six
 ujson>=1.35
 dill>=0.2,<0.3
 requests>=2.13.0,<3.0.0
-regex>=2.4.0,<3.0.0
+regex==2017.4.5
diff --git a/setup.py b/setup.py
index c133390f1..f6a8e73c5 100644
--- a/setup.py
+++ b/setup.py
@@ -247,7 +247,7 @@ def setup_package():
                 'ujson>=1.35',
                 'dill>=0.2,<0.3',
                 'requests>=2.13.0,<3.0.0',
-                'regex>=2.4.0,<3.0.0'],
+                'regex==2017.4.5']
             classifiers=[
                 'Development Status :: 5 - Production/Stable',
                 'Environment :: Console',