diff --git a/.travis.yml b/.travis.yml
index 83f70eb..5ef414a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ python:
   - 3.4
 
 install:
-  - pip install mkdocs
+  - pip install mkdocs == 0.16.3
   - python setup.py install
 
 script:
diff --git a/mkdocs.yml b/mkdocs.yml
index 92185d7..28ac2fd 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -103,6 +103,4 @@ extra_css:
 
 docs_dir: 'docs'
 
-theme:
-    name: 'yeti'
-    custom_dir: 'yeti'
\ No newline at end of file
+theme_dir: 'yeti'
\ No newline at end of file