diff --git a/projects/pngquant.org/lib/package.yml b/projects/pngquant.org/lib/package.yml
index fd02426c..4ce5a83e 100644
--- a/projects/pngquant.org/lib/package.yml
+++ b/projects/pngquant.org/lib/package.yml
@@ -11,6 +11,7 @@ build:
   dependencies:
     github.com/lu-zero/cargo-c: '*'
     rust-lang.org/cargo: '*'
+    rust-lang.org: ^1.65
 
   working-directory: imagequant-sys
   script: cargo cinstall --prefix {{prefix}}