diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 675d8e8..4df8006 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -24,6 +24,7 @@ jobs:
         git clone https://github.com/rbenv/rbenv.git ~/.rbenv
         echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
         echo 'eval "$(rbenv init -)"' >> ~/.bashrc
+        exec bash
         rbenv init
         git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
         RUBY_CONFIGURE_OPTS="cppflags=-DUNIVERSAL_PARSER" rbenv install ruby-dev