diff --git a/shared/test/showcase/test_helper.rb b/shared/test/showcase/test_helper.rb
index 95ca2b74f..81fd2fc87 100644
--- a/shared/test/showcase/test_helper.rb
+++ b/shared/test/showcase/test_helper.rb
@@ -21,7 +21,7 @@
 require "tmpdir"
 
 # @private
-GAPIC_SHOWCASE_VERSION = '0.37.0'
+GAPIC_SHOWCASE_VERSION = '0.42.0'
 
 def generate_library_for_test imports, protos
   client_lib = Dir.mktmpdir