diff --git a/data/Dockerfiles/watchdog/watchdog.sh b/data/Dockerfiles/watchdog/watchdog.sh
index d90d35d4..5079bd57 100755
--- a/data/Dockerfiles/watchdog/watchdog.sh
+++ b/data/Dockerfiles/watchdog/watchdog.sh
@@ -476,7 +476,11 @@ acme_checks() {
   while [ ${err_count} -lt ${THRESHOLD} ]; do
     err_c_cur=${err_count}
     ACME_LOG_STATUS_PREV=${ACME_LOG_STATUS}
-    ACME_LOG_STATUS=$(redis-cli -h redis GET ACME_FAIL_TIME)
+    ACME_LC=0
+    until [[ ! -z ${ACME_LOG_STATUS} ]] || [ ${ACME_LC} -ge 3 ]; do
+      ACME_LOG_STATUS=$(redis-cli -h redis GET ACME_FAIL_TIME 2> /dev/null)
+      ACME_LC=$((ACME_LC+1))
+    done
     if [[ ${ACME_LOG_STATUS_PREV} != ${ACME_LOG_STATUS} ]]; then
       err_count=$(( ${err_count} + 1 ))
     fi
diff --git a/docker-compose.yml b/docker-compose.yml
index dc4d201a..e0eff60f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -365,7 +365,7 @@ services:
         - /lib/modules:/lib/modules:ro
 
     watchdog-mailcow:
-      image: mailcow/watchdog:1.65
+      image: mailcow/watchdog:1.66
       # Debug
       #command: /watchdog.sh
       dns: