diff --git a/sorbet/rbi/hidden-definitions/hidden.rbi b/sorbet/rbi/hidden-definitions/hidden.rbi
index 664d182..6d6a312 100644
--- a/sorbet/rbi/hidden-definitions/hidden.rbi
+++ b/sorbet/rbi/hidden-definitions/hidden.rbi
@@ -9104,7 +9104,6 @@ module URI::Util
 end
 
 module URI
-  extend ::URI::Escape
   def self.get_encoding(label); end
 end
 
diff --git a/spec/client_spec.rb b/spec/client_spec.rb
index 6190e6a..971573c 100644
--- a/spec/client_spec.rb
+++ b/spec/client_spec.rb
@@ -842,7 +842,11 @@ def cleanup_fellowship_leftovers!(client)
     end
 
     it 'use the blocklist for a channel type' do
-      @client.update_channel_type('team', blocklist: @blocklist, blocklist_behavior: 'block')
+      # A new blocklist is not always visible to UpdateChannelType right away
+      # ("invalid block list name"), so retry for a few seconds.
+      loop_times 10 do
+        @client.update_channel_type('team', blocklist: @blocklist, blocklist_behavior: 'block')
+      end
     end
 
     xit 'should block messages that match the blocklist' do