diff --git a/.abf.yml b/.abf.yml
index 79d77be..c32c78f 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,2 +1,3 @@
 sources:
+  glibc-2.33.tar.xz: c33953a648e5f6373211cc9f6d9b9647d862aa45
   glibc-manpages.tar.bz2: ca54bfb832b703c8e35170fcc1c1f5470b45ff0f