diff --git a/Formula/postgresql.rb b/Formula/postgresql.rb
index b9b1672d2d..847b40fd76 100644
--- a/Formula/postgresql.rb
+++ b/Formula/postgresql.rb
@@ -13,6 +13,11 @@ class Postgresql < Formula
 
   depends_on "pkg-config" => :build
   depends_on "icu4c"
+
+  # GSSAPI provided by Kerberos.framework crashes when forked.
+  # See https://github.com/Homebrew/homebrew-core/issues/47494.
+  depends_on "krb5"
+
   depends_on "openssl@1.1"
   depends_on "readline"
   uses_from_macos "libxml2"