diff --git a/reqs.txt b/reqs.txt
index 5bae509e..a901cce7 100644
--- a/reqs.txt
+++ b/reqs.txt
@@ -10,7 +10,7 @@ lxml
 Babel
 polib
 pint
-pyshp
+pyshp==1.*
 pillow
 theano
 spotpy