diff --git a/lib/galaxy/dependencies/pinned-requirements.txt b/lib/galaxy/dependencies/pinned-requirements.txt
index e0b23b76841..875d314027d 100644
--- a/lib/galaxy/dependencies/pinned-requirements.txt
+++ b/lib/galaxy/dependencies/pinned-requirements.txt
@@ -14,6 +14,7 @@ uWSGI==2.0.15
 
 # pure Python packages
 bz2file==0.98; python_version < '3.3'
+ipaddress==1.0.18; python_version < '3.3'
 Paste==2.0.2
 PasteDeploy==1.5.2
 docutils==0.12
diff --git a/lib/galaxy/dependencies/requirements.txt b/lib/galaxy/dependencies/requirements.txt
index f28cbc732c0..6aa3ce087d8 100644
--- a/lib/galaxy/dependencies/requirements.txt
+++ b/lib/galaxy/dependencies/requirements.txt
@@ -14,6 +14,7 @@ pycrypto
 
 # pure Python packages
 bz2file; python_version < '3.3'
+ipaddress; python_version < '3.3'
 Paste
 PasteDeploy
 docutils