diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 5e0291b79cd..f402be8aa9e 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -19723,10 +19723,10 @@ let
 
   YAML = buildPerlPackage {
     pname = "YAML";
-    version = "1.27";
+    version = "1.29";
     src = fetchurl {
-      url = mirror://cpan/authors/id/T/TI/TINITA/YAML-1.27.tar.gz;
-      sha256 = "1yc2yqjyrcdlhp209f3a63f9xx6v5klisli25fv221yy43la34n9";
+      url = mirror://cpan/authors/id/T/TI/TINITA/YAML-1.29.tar.gz;
+      sha256 = "0gl5ssvrdajlbc85cy6z873n9cwlssk5q8z97a31vyiikhw5fp4w";
     };
 
     buildInputs = [ TestBase TestDeep TestYAML ];