diff --git a/deno_dist/client/utils.ts b/deno_dist/client/utils.ts
index 017c7c10..aea09122 100644
--- a/deno_dist/client/utils.ts
+++ b/deno_dist/client/utils.ts
@@ -9,7 +9,7 @@ export const mergePath = (base: string, path: string) => {
 
 export const replaceUrlParam = (urlString: string, params: Record<string, string>) => {
   for (const [k, v] of Object.entries(params)) {
-    const reg = new RegExp('/:' + k + '({[^}]*})?')
+    const reg = new RegExp('/:' + k + '(?:{[^/]+})?')
     urlString = urlString.replace(reg, `/${v}`)
   }
   return urlString
diff --git a/src/client/utils.test.ts b/src/client/utils.test.ts
index f348d734..a67a0140 100644
--- a/src/client/utils.test.ts
+++ b/src/client/utils.test.ts
@@ -30,6 +30,16 @@ describe('replaceUrlParams', () => {
     const replacedUrl = replaceUrlParam(url, params)
     expect(replacedUrl).toBe('http://localhost/posts/abc/comments/456')
   })
+
+  it('Should replace correctly when there is regex pattern with length limit', () => {
+    const url = 'http://localhost/year/:year{[1-9]{1}[0-9]{3}}/month/:month{[0-9]{2}}'
+    const params = {
+      year: '2024',
+      month: '2',
+    }
+    const replacedUrl = replaceUrlParam(url, params)
+    expect(replacedUrl).toBe('http://localhost/year/2024/month/2')
+  })
 })
 
 describe('removeIndexString', () => {
diff --git a/src/client/utils.ts b/src/client/utils.ts
index 4cdc0702..0b2573fb 100644
--- a/src/client/utils.ts
+++ b/src/client/utils.ts
@@ -9,7 +9,7 @@ export const mergePath = (base: string, path: string) => {
 
 export const replaceUrlParam = (urlString: string, params: Record<string, string>) => {
   for (const [k, v] of Object.entries(params)) {
-    const reg = new RegExp('/:' + k + '({[^}]*})?')
+    const reg = new RegExp('/:' + k + '(?:{[^/]+})?')
     urlString = urlString.replace(reg, `/${v}`)
   }
   return urlString