diff --git a/.travis.yml b/.travis.yml
index 46d016cb3..0b7484968 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -105,7 +105,7 @@ install: # command output is hidden as they complete
   #- git clone http://github.com/simonmichael/shelltestrunner
   #- if [[ ! -d shelltestrunner ]]; then git clone http://github.com/simonmichael/shelltestrunner; fi
   - git clone http://github.com/simonmichael/shelltestrunner
-  - if [[ ! -x ~/.local/bin/shelltest ]]; then stack install --stack-yaml=shelltestrunner/stack.yaml --resolver=lts-8.6; fi
+  - if [[ ! -x ~/.local/bin/shelltest ]]; then stack install --stack-yaml=shelltestrunner/stack.yaml; fi
   - shelltest --version
 
 script:  # command output is not hidden
diff --git a/doc/README b/doc/README.md
similarity index 100%
rename from doc/README
rename to doc/README.md