diff --git a/certbot_dns_yeil/dns_yeil.py b/certbot_dns_yeil/dns_yeil.py
index 6712038..116eae0 100644
--- a/certbot_dns_yeil/dns_yeil.py
+++ b/certbot_dns_yeil/dns_yeil.py
@@ -39,8 +39,13 @@ class Authenticator(dns_common.DNSAuthenticator):
 
     @classmethod
     def add_parser_arguments(cls, add):
+        # yeil serves DNS from edge replicas fed by a replication log, so a
+        # freshly-written TXT takes a little time to appear on every
+        # authoritative nameserver. 20s was too tight and tripped Let's
+        # Encrypt's secondary (multi-perspective) validation against a
+        # not-yet-converged replica; 60s gives all replicas time to catch up.
         super(Authenticator, cls).add_parser_arguments(
-            add, default_propagation_seconds=20
+            add, default_propagation_seconds=60
         )
         add("credentials", help="Path to your yeil credentials INI file.")
 
diff --git a/setup.py b/setup.py
index f14ff8f..7931cf3 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 
 setup(
     name="certbot-dns-yeil",
-    version="3.0.0",
+    version="3.0.1",
     description="yeil DNS Authenticator plugin for Certbot",
     url="https://git.eskimo.dev/Yeil/certbot-dns-yeil",
     author="yeil",