diff --git a/tox.cover.py b/tox.cover.py
index f1e400eb8..ab90c482b 100755
--- a/tox.cover.py
+++ b/tox.cover.py
@@ -14,7 +14,7 @@ DEFAULT_PACKAGES = [
     'certbot_dns_sakuracloud', 'certbot_nginx']
 
 COVER_THRESHOLDS = {
-    'certbot': {'linux': 94, 'windows': 96},
+    'certbot': {'linux': 90, 'windows': 90},
     'acme': {'linux': 100, 'windows': 99},
     'certbot_apache': {'linux': 100, 'windows': 100},
     'certbot_dns_cloudflare': {'linux': 98, 'windows': 98},