diff --git a/_dl.sh b/_dl.sh
index a6bb5430d..6b66f8d9b 100755
--- a/_dl.sh
+++ b/_dl.sh
@@ -112,7 +112,7 @@ cat <<EOF
     "sig": "https://github.com/ngtcp2/ngtcp2/releases/download/v{ver}/ngtcp2-{ver}.tar.bz2.asc",
     "redir": "redir",
     "tag": ".+",
-    "keys": "https://keyserver.ubuntu.com/pks/lookup?op=get&options=mr&exact=on&search=0x27EDEAF22F3ABCEB50DB9A125CC908FDB71E12C2"
+    "keys": "https://keyserver.ubuntu.com/pks/lookup?op=get&options=mr&exact=on&search=0x27EDEAF22F3ABCEB50DB9A125CC908FDB71E12C2 https://keyserver.ubuntu.com/pks/lookup?op=get&options=mr&exact=on&search=0xF4F3B91474D1EB29889BD0EF7E8403D5D673C366"
   },
   {
     "name": "wolfssl",