diff --git a/requirements.txt b/requirements.txt
index 2dc3f11..e009265 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,6 @@ flask-restful
 gitpython
 scipy
 seaborn
-selenium
+selenium==2.53.6
 cognitiveatlas
 numexpr
diff --git a/setup.py b/setup.py
index 1e322bc..6179ccf 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
     name="expfactory",
 
     # Version number (initial):
-    version="2.5.44",
+    version="2.5.46",
 
     # Application author details:
     author="Vanessa Sochat",
@@ -29,7 +29,7 @@
     description="Python module for managing experiment factory experiments, for deployment to a psiturk battery or docker container.",
     keywords='psiturk behavior neuroscience experiment factory docker',
 
-    install_requires = ['requests','numpy','Flask','gitpython','flask-restful','selenium','cognitiveatlas','scipy','numexpr','seaborn'],
+    install_requires = ['requests','numpy','Flask','gitpython','flask-restful','selenium==2.53.6','cognitiveatlas','scipy','numexpr','seaborn'],
 
     entry_points = {
         'console_scripts': [