diff --git a/.travis.yml b/.travis.yml
index 460a4ab..0051392 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ addons:
   apt:
     packages:
     - redis-server
+    - python-pyside
 
 python:
   # major versions, test first
diff --git a/external_dependencies.txt b/external_dependencies.txt
new file mode 100644
index 0000000..7893bc8
--- /dev/null
+++ b/external_dependencies.txt
@@ -0,0 +1,3 @@
+PySide
+  - On linux, sudo apt-get install python-pyside
+  - On Windows, install installers from their website
diff --git a/requirements.txt b/requirements.txt
index 4cafa4a..308e278 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,6 @@
 redis
 pytest
 htmlpy
-PySide
 
 python-dateutil
 humanfriendly