diff --git a/.travis.yml b/.travis.yml
index cbee1dda2..23fd056d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,7 +32,7 @@ before_script:
   - popd
   - mkdir opm-parser/build
   - pushd opm-parser/build
-  - git checkout 8d202adefd7f8b84c7124210a84af09af71ecb96
+  - git checkout sunbeam-2017.10
   - cmake -DCMAKE_PREFIX_PATH=$INSTALL_ROOT -DCMAKE_INSTALL_PREFIX=$INSTALL_ROOT -DBUILD_TESTING=OFF -DBUILD_SHARED_LIBS=ON ..
   - make install
   - popd
diff --git a/README.md b/README.md
index bcd1b9fcd..0bd74a8f7 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,19 @@ cmake ..
 make install
 ```
 
+# Use the correct version of OPM-Parser:
+
+As of October 2017 the master branch of opm-parser is not compatible with
+sunbeam. To build sunbeam you should check out and build the branch
+`sunbeam-2017.10` of opm-parser:
+```
+git clone git@github.com:OPM/opm-parser
+git checkout sunbeam-2017.10
+...
+...
+```
+
+
 # Quick start (WIP)
 Assumes you have built (and maybe installed) opm-parser