diff --git a/requirements.txt b/requirements.txt
index 68f6b2028af..4b5c1a38b06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ Werkzeug>=0.8.3,<0.9
 
 # Sandbox
 Whoosh>=2.4.1,<2.5
+pysqlite==2.6.3
 
 # Docs
 Sphinx>=1.1.3,<1.2