diff --git a/setup.py b/setup.py
index 12e2476b..e90bfc82 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,7 @@ setup(name='fdroidserver',
           'paramiko',
           'Pillow',
           'apache-libcloud >= 0.14.1',
-          'pyasn1',
+          'pyasn1 <= 0.3.2',
           'pyasn1-modules',
           'python-vagrant',
           'PyYAML',