diff --git a/.travis.yml b/.travis.yml
index 7c31eeb..fe57f90 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: python
 sudo: false
 python:
+    - 'nightly'
     - '3.4'
     - '3.3'
     - '3.2'
@@ -31,6 +32,9 @@ deploy:
     python: 2.6
     tags: true
     repo: mdshw5/pyfaidx
+matrix:
+  allow_failures:
+    - python: 'nightly'
 cache:
     directories:
         - tests/data
diff --git a/pyfaidx/__init__.py b/pyfaidx/__init__.py
index 047bcf8..fbaf074 100644
--- a/pyfaidx/__init__.py
+++ b/pyfaidx/__init__.py
@@ -21,7 +21,7 @@
 
 dna_bases = re.compile(r'([ACTGNactgnYRWSKMDVHBXyrwskmdvhbx]+)')
 
-__version__ = '0.4.1'
+__version__ = '0.4.1.1'
 
 
 class FastaIndexingError(Exception):