1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index 3f76764..3a70834 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ group :development do
   # Keep in sync with version used in opal-node-runtime <- asciidoctor.js.
   # TODO: Maybe replace with JS version after
   #   https://github.com/Mogztter/opal-node-compiler/issues/6 is resolved.
-  gem 'opal', github: 'opal/opal', ref: 'd136ea8'
+  gem 'opal', github: 'opal/opal', ref: '31d26d69'
 end
 
 group :ci do