diff --git a/src/main/java/com/offer/member/MemberController.java b/src/main/java/com/offer/member/MemberController.java
index c1f60bd..25e8c65 100644
--- a/src/main/java/com/offer/member/MemberController.java
+++ b/src/main/java/com/offer/member/MemberController.java
@@ -7,6 +7,7 @@
 import com.offer.common.response.ApiResponse;
 import com.offer.common.response.ResponseMessage;
 import com.offer.member.request.MemberUpdateRequest;
+import com.offer.member.request.NicknameQueryRequest;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.security.SecurityRequirement;
@@ -19,6 +20,7 @@
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -32,8 +34,8 @@ public class MemberController {
 
     @Operation(summary = "닉네임 중복 조회")
     @PostMapping("/nickname-duplicate")
-    public ResponseEntity<ApiResponse<Map<String, Boolean>>> getNicknameDuplication(String nickname) {
-        boolean exists = memberService.hasNickname(nickname);
+    public ResponseEntity<ApiResponse<Map<String, Boolean>>> getNicknameDuplication(@RequestBody NicknameQueryRequest request) {
+        boolean exists = memberService.hasNickname(request.getNickname());
         HashMap<String, Boolean> result = new HashMap<>();
         result.put("duplicate", exists);
         return ResponseEntity.ok(
@@ -63,7 +65,7 @@ public ResponseEntity<ApiResponse<MemberProfileResponse>> getMember(@PathVariabl
     @PutMapping("/member/{memberId}")
     public ResponseEntity<ApiResponse<Long>> updateMember(
         @Schema(hidden = true) @AuthenticationPrincipal LoginMember loginMember,
-        @PathVariable Long memberId, MemberUpdateRequest request) {
+        @PathVariable Long memberId, @RequestBody MemberUpdateRequest request) {
         log.info("getMember = {}", loginMember);
         if (loginMember.getId() == null) {
             throw new IllegalArgumentException("잘못된 토큰");
diff --git a/src/main/java/com/offer/member/MemberService.java b/src/main/java/com/offer/member/MemberService.java
index 4ccf237..98ca8ab 100644
--- a/src/main/java/com/offer/member/MemberService.java
+++ b/src/main/java/com/offer/member/MemberService.java
@@ -56,7 +56,7 @@ public Long updateMember(Long memberId, MemberUpdateRequest request) {
         if (StringUtils.hasText(profileImageUrl)) {
             member.changeProfileImageUrl(profileImageUrl);
         }
-        if (StringUtils.hasText(nickname)) {
+        if (!StringUtils.hasText(nickname)) {
             throw new IllegalArgumentException("닉네임이 비어있음");
         }
         member.changeNickname(nickname);
diff --git a/src/main/java/com/offer/member/request/NicknameQueryRequest.java b/src/main/java/com/offer/member/request/NicknameQueryRequest.java
new file mode 100644
index 0000000..40db09c
--- /dev/null
+++ b/src/main/java/com/offer/member/request/NicknameQueryRequest.java
@@ -0,0 +1,11 @@
+package com.offer.member.request;
+
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+public class NicknameQueryRequest {
+
+    private String nickname;
+}