diff --git a/projects/leo-lang.org/package.yml b/projects/leo-lang.org/package.yml
index 5fb426a2..c6b22687 100644
--- a/projects/leo-lang.org/package.yml
+++ b/projects/leo-lang.org/package.yml
@@ -10,6 +10,7 @@ build:
   dependencies:
     rust-lang.org: ^1.65
     rust-lang.org/cargo: '*'
+    cmake.org: ^3 # as of 1.12.0 for libz-ng-sys crate
   script:
     - cargo install --locked --path . --root {{prefix}}
 provides: