diff --git a/dev-lang/zig/zig-9999.ebuild b/dev-lang/zig/zig-9999.ebuild
index 69ecca15fe9c6..9f811213cd8ff 100644
--- a/dev-lang/zig/zig-9999.ebuild
+++ b/dev-lang/zig/zig-9999.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-LLVM_COMPAT=( 20 )
+LLVM_COMPAT=( 21 )
 LLVM_OPTIONAL=1
 
 ZIG_SLOT="$(ver_cut 1-2)"