diff --git a/requirements.txt b/requirements.txt
index d63b0651d..e71bf8e81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,6 +61,7 @@ rfc2html>=2.0.1
 selenium>=2.42,<3.8.1
 six>=1.9.0
 sqlparse>=0.2.2
+svn>=1.0.1
 tblib>=1.3.0
 tqdm>=3.7.0
 #Trac>=1.0.10,<1.2