diff --git a/beeswarm/__init__.py b/beeswarm/__init__.py
index 8de56794..4bdcbbb5 100644
--- a/beeswarm/__init__.py
+++ b/beeswarm/__init__.py
@@ -1 +1 @@
-version = '0.4.7'
\ No newline at end of file
+version = '0.4.8'
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 8c6fc35b..192dafe4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,10 @@
---allow-all-external
 --allow-unverified pyDes
+--allow-external pyDes
 pyzmq>=14.1.1
 fs
+pycrypto
 Crypto
+ecdsa
 cssselect
 nose
 gevent>=1.0