diff --git a/docs/changelog/index.md b/docs/changelog/index.md
index c8da7b27..d405c7b6 100644
--- a/docs/changelog/index.md
+++ b/docs/changelog/index.md
@@ -29,6 +29,7 @@ sidebar: false
 ### 改进
 
 - IP 组自动规则中的 `StatusCount` / `StatusRatio` 支持状态码类写法（如 `"2xx"`、`"4xx"`、`"5xx"`），便于按整类错误率匹配。
+- IP 组同步间隔下限由 5 分钟调整为 1 分钟，便于更频繁同步自动/订阅名单。
 
 ### 修复
 
diff --git a/frontend/app/(main)/waf/components/ip-group-dialog.tsx b/frontend/app/(main)/waf/components/ip-group-dialog.tsx
index f3693c8c..987ee3c3 100644
--- a/frontend/app/(main)/waf/components/ip-group-dialog.tsx
+++ b/frontend/app/(main)/waf/components/ip-group-dialog.tsx
@@ -58,7 +58,7 @@ const ipGroupSchema = z
     subscription_url: z.string(),
     subscription_format: z.enum(['text', 'json']),
     subscription_mapping_rule: z.string(),
-    sync_interval_minutes: z.number().int().min(5),
+    sync_interval_minutes: z.number().int().min(1),
   })
   .superRefine((value, context) => {
     if (value.type === 'subscription' && !value.subscription_url.trim()) {
@@ -329,7 +329,7 @@ export function IPGroupDialog({
                       <FormControl>
                         <Input
                           type='number'
-                          min={5}
+                          min={1}
                           value={field.value}
                           onChange={(event) =>
                             field.onChange(Number(event.target.value))
@@ -337,7 +337,7 @@ export function IPGroupDialog({
                         />
                       </FormControl>
                       <FormDescription>
-                        最小 5 分钟，默认 1440 分钟。
+                        最小 1 分钟，默认 1440 分钟。
                       </FormDescription>
                       <FormMessage />
                     </FormItem>
@@ -376,7 +376,7 @@ export function IPGroupDialog({
                       <FormControl>
                         <Input
                           type='number'
-                          min={5}
+                          min={1}
                           value={field.value}
                           onChange={(event) =>
                             field.onChange(Number(event.target.value))
@@ -384,7 +384,8 @@ export function IPGroupDialog({
                         />
                       </FormControl>
                       <FormDescription>
-                        定时从请求日志挖掘恶意 IP 的周期。最小 5 分钟。
+                        定时从请求日志挖掘恶意 IP 的周期。最小 1 分钟，默认
+                        1440 分钟。
                       </FormDescription>
                       <FormMessage />
                     </FormItem>
diff --git a/internal/apps/openflare/waf/logics.go b/internal/apps/openflare/waf/logics.go
index 53c115d3..f33991f6 100644
--- a/internal/apps/openflare/waf/logics.go
+++ b/internal/apps/openflare/waf/logics.go
@@ -32,7 +32,8 @@ const (
 
 	defaultWAFIPGroupSyncIntervalMinutes = 1440
 	defaultWAFIPGroupAutoLookbackMinutes = 60
-	minWAFIPGroupSyncIntervalMinutes     = 5
+	minWAFIPGroupSyncIntervalMinutes     = 1
+	minWAFIPGroupAutoLookbackMinutes     = 5
 	maxWAFIPGroupSyncIntervalMinutes     = 43200
 	minPoWSessionTTLSeconds              = 60
 	minPoWChallengeTTLSeconds            = 30
@@ -507,8 +508,8 @@ func parseIPGroupAutoConfig(raw json.RawMessage) (ipGroupAutoConfig, error) {
 	if config.LookbackMinutes <= 0 {
 		config.LookbackMinutes = defaultWAFIPGroupAutoLookbackMinutes
 	}
-	if config.LookbackMinutes < minWAFIPGroupSyncIntervalMinutes {
-		config.LookbackMinutes = minWAFIPGroupSyncIntervalMinutes
+	if config.LookbackMinutes < minWAFIPGroupAutoLookbackMinutes {
+		config.LookbackMinutes = minWAFIPGroupAutoLookbackMinutes
 	}
 	if config.LookbackMinutes > maxWAFIPGroupSyncIntervalMinutes {
 		config.LookbackMinutes = maxWAFIPGroupSyncIntervalMinutes