diff -Nru hplip-3.18.6.orig/base/validation.py hplip-3.18.6/base/validation.py
--- hplip-3.18.6.orig/base/validation.py	2018-10-19 17:35:32.010728295 +0200
+++ hplip-3.18.6/base/validation.py	2018-10-19 17:36:43.659085152 +0200
@@ -42,7 +42,7 @@
 
 
 class GPG_Verification(DigiSign_Verification):
-    def __init__(self, pgp_site = 'pgp.mit.edu', key = 0x4ABA2F66DBD5A95894910E0673D770CDA59047B9):
+    def __init__(self, pgp_site = 'pool.sks-keyservers.net', key = 0x4ABA2F66DBD5A95894910E0673D770CDA59047B9):
         self.__pgp_site = pgp_site
         self.__key = key
         self.__gpg = utils.which('gpg',True)