1.21.4
diff --git a/emscripten-version.txt b/emscripten-version.txt
index 6318f23..a08cf9e 100644
--- a/emscripten-version.txt
+++ b/emscripten-version.txt
@@ -1,2 +1,2 @@
-1.21.3
+1.21.4