diff --git a/recipes/zlib/recipe.toml b/recipes/zlib/recipe.toml
index 11b97874..e33f2aff 100644
--- a/recipes/zlib/recipe.toml
+++ b/recipes/zlib/recipe.toml
@@ -1,5 +1,6 @@
 [source]
 tar = "http://zlib.net/zlib-1.2.11.tar.gz"
+blake3 = "20db628054c3c09edea193700ca39d3c033655529cbdc5d88f3c5da7514ad949"
 
 [build]
 template = "custom"