diff --git a/projects/facebook.com/folly/package.yml b/projects/facebook.com/folly/package.yml
index af82cc55..ca4b2d0b 100644
--- a/projects/facebook.com/folly/package.yml
+++ b/projects/facebook.com/folly/package.yml
@@ -23,7 +23,7 @@ dependencies:
   darwin:
     sourceware.org/bzip2: '*'
   linux:
-    llvm.org: ^17 # libunwind, since 2024.5.13.0
+    libcxx.llvm.org: ^18 # libunwind, since 2024.5.13.0
     jemalloc.net: ^5 # since 2024.5.13.0
     elfutils.org: ^0 # for dwarf.h, since 2024.5.13.0