diff --git a/server/docker.js b/server/docker.js
index 177fa6cb6..ff2315027 100644
--- a/server/docker.js
+++ b/server/docker.js
@@ -75,7 +75,7 @@ class DockerHost {
         if (dockerHost.dockerType === "socket") {
             options.socketPath = dockerHost.dockerDaemon;
         } else if (dockerHost.dockerType === "tcp") {
-            options.baseURL = dockerHost.dockerDaemon;
+            options.baseURL = DockerHost.patchDockerURL(dockerHost.dockerDaemon);
         }
 
         let res = await axios.request(options);
@@ -99,6 +99,18 @@ class DockerHost {
         }
 
     }
+
+    /**
+     * Since axios 0.27.X, it does not accept `tcp://` protocol.
+     * Change it to `http://` on the fly in order to fix it. (https://github.com/louislam/uptime-kuma/issues/2165)
+     */
+    static patchDockerURL(url) {
+        if (typeof url === "string") {
+            // Replace the first occurrence only with g
+            return url.replace(/tcp:\/\//g, "http://");
+        }
+        return url;
+    }
 }
 
 module.exports = {
diff --git a/server/model/monitor.js b/server/model/monitor.js
index f96b4df06..ac8925608 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -17,6 +17,7 @@ const version = require("../../package.json").version;
 const apicache = require("../modules/apicache");
 const { UptimeKumaServer } = require("../uptime-kuma-server");
 const { CacheableDnsHttpAgent } = require("../cacheable-dns-http-agent");
+const { DockerHost } = require("../docker");
 
 /**
  * status:
@@ -498,7 +499,7 @@ class Monitor extends BeanModel {
                     if (dockerHost._dockerType === "socket") {
                         options.socketPath = dockerHost._dockerDaemon;
                     } else if (dockerHost._dockerType === "tcp") {
-                        options.baseURL = dockerHost._dockerDaemon;
+                        options.baseURL = DockerHost.patchDockerURL(dockerHost._dockerDaemon);
                     }
 
                     log.debug(`[${this.name}] Axios Request`);
diff --git a/server/socket-handlers/docker-socket-handler.js b/server/socket-handlers/docker-socket-handler.js
index 5a53494db..542f18cef 100644
--- a/server/socket-handlers/docker-socket-handler.js
+++ b/server/socket-handlers/docker-socket-handler.js
@@ -56,7 +56,7 @@ module.exports.dockerSocketHandler = (socket) => {
             let amount = await DockerHost.testDockerHost(dockerHost);
             let msg;
 
-            if (amount > 1) {
+            if (amount >= 1) {
                 msg = "Connected Successfully. Amount of containers: " + amount;
             } else {
                 msg = "Connected Successfully, but there are no containers?";
diff --git a/src/components/DockerHostDialog.vue b/src/components/DockerHostDialog.vue
index 92a8ce455..50ffa49c1 100644
--- a/src/components/DockerHostDialog.vue
+++ b/src/components/DockerHostDialog.vue
@@ -30,7 +30,8 @@
                                 {{ $t("Examples") }}:
                                 <ul>
                                     <li>/var/run/docker.sock</li>
-                                    <li>tcp://localhost:2375</li>
+                                    <li>http://localhost:2375</li>
+                                    <li>https://localhost:2376 (TLS)</li>
                                 </ul>
                             </div>
                         </div>