diff --git a/local/recipes/dev/m4/recipe.toml b/local/recipes/dev/m4/recipe.toml
index 83ed8bdd72..9fbdda1216 100644
--- a/local/recipes/dev/m4/recipe.toml
+++ b/local/recipes/dev/m4/recipe.toml
@@ -1,5 +1,5 @@
 [source]
-tar = "https://ftp.gnu.org/gnu/m4/m4-1.14.21.tar.xz"
+tar = "https://ftp.gnu.org/gnu/m4/m4-1.4.21.tar.xz"
 patches = ["redox.patch"]
 
 [build]
diff --git a/local/recipes/dev/m4/source/.redbear-src-version b/local/recipes/dev/m4/source/.redbear-src-version
new file mode 100644
index 0000000000..8cc8fe024b
--- /dev/null
+++ b/local/recipes/dev/m4/source/.redbear-src-version
@@ -0,0 +1 @@
+1.4.21