diff --git a/README.md b/README.md
index 2af930f..768e4ba 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ Iterator Sequencing
 
 A TC39 proposal to create iterators by sequencing existing iterators.
 
-**Stage:** 3
+**Stage:** 4
 
 **Specification:** https://tc39.es/proposal-iterator-sequencing/
 
diff --git a/spec.emu b/spec.emu
index d7b5273..c9af508 100644
--- a/spec.emu
+++ b/spec.emu
@@ -3,7 +3,7 @@
 <pre class="metadata">
 title: Iterator Sequencing
 status: proposal
-stage: 3
+stage: 4
 contributors: Michael Ficarra
 location: https://tc39.es/proposal-iterator-sequencing/
 copyright: false