diff --git a/.builds/apple.yml b/.builds/apple.yml
index 7fbcbe35e..7e4911ce1 100644
--- a/.builds/apple.yml
+++ b/.builds/apple.yml
@@ -9,7 +9,8 @@ packages:
  - libssl-dev
  - libz-dev
  - llvm-dev # for cctools
- - uuid-dev ## for cctools
+ - uuid-dev # for cctools
+ - libblocksruntime-dev # for cctools
  - libplist-utils # for gogio
 sources:
  - https://git.sr.ht/~eliasnaur/applesdks