diff --git a/lib/library_version_analysis/online.rb b/lib/library_version_analysis/online.rb
index 74d07b9..f3725e6 100644
--- a/lib/library_version_analysis/online.rb
+++ b/lib/library_version_analysis/online.rb
@@ -32,7 +32,7 @@ def check_for(regex, line)
     def run_libyear(param)
       # there is a bug in libyear (which I'm proposing a fix for) that makes -all fail, so
       # we need to run --libyar and --releases separately
-      cmd = "libyear-bundler #{param}"
+      cmd = "bundle exec libyear-bundler #{param}"
       results, captured_err, status = Open3.capture3(cmd)
 
       if status.exitstatus != 0