diff --git a/package-lock.json b/package-lock.json
index c805df6d6..98d351db4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,7 @@
                 "command-exists": "~1.2.9",
                 "compare-versions": "~3.6.0",
                 "compression": "~1.7.4",
-                "croner": "~6.0.5",
+                "croner": "~8.1.0",
                 "dayjs": "~1.11.5",
                 "dev-null": "^0.1.1",
                 "dotenv": "~16.0.3",
@@ -6744,12 +6744,11 @@
             }
         },
         "node_modules/croner": {
-            "version": "6.0.7",
-            "resolved": "https://registry.npmjs.org/croner/-/croner-6.0.7.tgz",
-            "integrity": "sha512-k3Xx3Rcclfr60Yx4TmvsF3Yscuiql8LSvYLaphTsaq5Hk8La4Z/udmUANMOTKpgGGroI2F6/XOr9cU9OFkYluQ==",
-            "license": "MIT",
+            "version": "8.1.0",
+            "resolved": "https://registry.npmjs.org/croner/-/croner-8.1.0.tgz",
+            "integrity": "sha512-sz990XOUPR8dG/r5BRKMBd15MYDDUu8oeSaxFD5DqvNgHSZw8Psd1s689/IGET7ezxRMiNlCIyGeY1Gvxp/MLg==",
             "engines": {
-                "node": ">=6.0"
+                "node": ">=18.0"
             }
         },
         "node_modules/cronstrue": {
diff --git a/package.json b/package.json
index b750f331c..a74e4677e 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
         "command-exists": "~1.2.9",
         "compare-versions": "~3.6.0",
         "compression": "~1.7.4",
-        "croner": "~6.0.5",
+        "croner": "~8.1.0",
         "dayjs": "~1.11.5",
         "dev-null": "^0.1.1",
         "dotenv": "~16.0.3",
diff --git a/server/model/maintenance.js b/server/model/maintenance.js
index 516c03777..7111a18cb 100644
--- a/server/model/maintenance.js
+++ b/server/model/maintenance.js
@@ -239,19 +239,7 @@ class Maintenance extends BeanModel {
                     this.beanMeta.status = "under-maintenance";
                     clearTimeout(this.beanMeta.durationTimeout);
 
-                    // Check if duration is still in the window. If not, use the duration from the current time to the end of the window
-                    let duration;
-
-                    if (customDuration > 0) {
-                        duration = customDuration;
-                    } else if (this.end_date) {
-                        let d = dayjs(this.end_date).diff(dayjs(), "second");
-                        if (d < this.duration) {
-                            duration = d * 1000;
-                        }
-                    } else {
-                        duration = this.duration * 1000;
-                    }
+                    let duration = this.inferDuration(customDuration);
 
                     UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
 
@@ -263,9 +251,21 @@ class Maintenance extends BeanModel {
                 };
 
                 // Create Cron
-                this.beanMeta.job = new Cron(this.cron, {
-                    timezone: await this.getTimezone(),
-                }, startEvent);
+                if (this.strategy === "recurring-interval") {
+                    // For recurring-interval, Croner needs to have interval and startAt
+                    const startDate = dayjs(this.startDate);
+                    const [ hour, minute ] = this.startTime.split(":");
+                    const startDateTime = startDate.hour(hour).minute(minute);
+                    this.beanMeta.job = new Cron(this.cron, {
+                        timezone: await this.getTimezone(),
+                        interval: this.interval_day * 24 * 60 * 60,
+                        startAt: startDateTime.toISOString(),
+                    }, startEvent);
+                } else {
+                    this.beanMeta.job = new Cron(this.cron, {
+                        timezone: await this.getTimezone(),
+                    }, startEvent);
+                }
 
                 // Continue if the maintenance is still in the window
                 let runningTimeslot = this.getRunningTimeslot();
@@ -311,6 +311,24 @@ class Maintenance extends BeanModel {
         }
     }
 
+    /**
+     * Calculate the maintenance duration
+     * @param {number} customDuration - The custom duration in milliseconds.
+     * @returns {number} The inferred duration in milliseconds.
+     */
+    inferDuration(customDuration) {
+        // Check if duration is still in the window. If not, use the duration from the current time to the end of the window
+        if (customDuration > 0) {
+            return customDuration;
+        } else if (this.end_date) {
+            let d = dayjs(this.end_date).diff(dayjs(), "second");
+            if (d < this.duration) {
+                return d * 1000;
+            }
+        }
+        return this.duration * 1000;
+    }
+
     /**
      * Stop the maintenance
      * @returns {void}
@@ -395,10 +413,8 @@ class Maintenance extends BeanModel {
         } else if (!this.strategy.startsWith("recurring-")) {
             this.cron = "";
         } else if (this.strategy === "recurring-interval") {
-            let array = this.start_time.split(":");
-            let hour = parseInt(array[0]);
-            let minute = parseInt(array[1]);
-            this.cron = minute + " " + hour + " */" + this.interval_day + " * *";
+            // For intervals, the pattern is calculated in the run function as the interval-option is set
+            this.cron = "* * * * *";
             this.duration = this.calcDuration();
             log.debug("maintenance", "Cron: " + this.cron);
             log.debug("maintenance", "Duration: " + this.duration);