diff --git a/.travis.yml b/.travis.yml
index b7e201e7..d2966206 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,8 +49,13 @@ matrix:
     - rust: 1.21.0
     - rust: 1.25.0
     - rust: 1.26.0
+
+    # Work around failing to parse manifest because editions are unstable.
     - rust: 1.27.0
+      before_script: sed -i /test_suite/d Cargo.toml
     - rust: 1.28.0
+      before_script: sed -i /test_suite/d Cargo.toml
+
     - rust: 1.34.0
 
     - rust: 1.36.0