diff --git a/piikii-application/src/main/kotlin/com/piikii/application/domain/course/CourseService.kt b/piikii-application/src/main/kotlin/com/piikii/application/domain/course/CourseService.kt
index 091b6106..82acb622 100644
--- a/piikii-application/src/main/kotlin/com/piikii/application/domain/course/CourseService.kt
+++ b/piikii-application/src/main/kotlin/com/piikii/application/domain/course/CourseService.kt
@@ -1,5 +1,6 @@
 package com.piikii.application.domain.course
 
+import com.piikii.application.domain.generic.LongTypeId
 import com.piikii.application.domain.generic.UuidTypeId
 import com.piikii.application.domain.place.Place
 import com.piikii.application.domain.schedule.Schedule
@@ -56,6 +57,26 @@ class CourseService(
         )
     }
 
+    @Transactional
+    override fun updateCoursePlace(
+        roomUid: UuidTypeId,
+        placeId: LongTypeId,
+    ) {
+        val place = placeQueryPort.findByPlaceId(placeId)
+
+        if (place.isInvalidRoomUid(roomUid)) {
+            throw PiikiiException(
+                exceptionCode = ExceptionCode.ILLEGAL_ARGUMENT_EXCEPTION,
+                detailMessage = "Room UUID: $roomUid, Room UUID in Place: ${place.roomUid}",
+            )
+        }
+
+        placeQueryPort.findConfirmedByScheduleId(place.scheduleId)?.let { confirmedPlace ->
+            placeCommandPort.update(confirmedPlace.id, confirmedPlace.copy(confirmed = false))
+        }
+        placeCommandPort.update(place.id, place.copy(confirmed = true))
+    }
+
     private fun getPlaceBySchedule(
         schedules: List<Schedule>,
         places: List<Place>,
diff --git a/piikii-application/src/main/kotlin/com/piikii/application/domain/place/Place.kt b/piikii-application/src/main/kotlin/com/piikii/application/domain/place/Place.kt
index 9f4e75b7..a63d7da3 100644
--- a/piikii-application/src/main/kotlin/com/piikii/application/domain/place/Place.kt
+++ b/piikii-application/src/main/kotlin/com/piikii/application/domain/place/Place.kt
@@ -21,7 +21,11 @@ data class Place(
     val longitude: Double?,
     val latitude: Double?,
 ) {
-    fun getCoordinate(): Coordinate? {
+    fun getCoordinate(): Coordinate {
         return Coordinate(this.longitude, this.latitude)
     }
+
+    fun isInvalidRoomUid(roomUid: UuidTypeId): Boolean {
+        return this.roomUid != roomUid
+    }
 }
diff --git a/piikii-application/src/main/kotlin/com/piikii/application/port/input/CourseUseCase.kt b/piikii-application/src/main/kotlin/com/piikii/application/port/input/CourseUseCase.kt
index e5b269e5..896af2a8 100644
--- a/piikii-application/src/main/kotlin/com/piikii/application/port/input/CourseUseCase.kt
+++ b/piikii-application/src/main/kotlin/com/piikii/application/port/input/CourseUseCase.kt
@@ -1,5 +1,6 @@
 package com.piikii.application.port.input
 
+import com.piikii.application.domain.generic.LongTypeId
 import com.piikii.application.domain.generic.UuidTypeId
 import com.piikii.application.port.input.dto.response.CourseResponse
 
@@ -7,4 +8,9 @@ interface CourseUseCase {
     fun isCourseExist(roomUid: UuidTypeId): Boolean
 
     fun retrieveCourse(roomUid: UuidTypeId): CourseResponse
+
+    fun updateCoursePlace(
+        roomUid: UuidTypeId,
+        placeId: LongTypeId,
+    )
 }
diff --git a/piikii-application/src/main/kotlin/com/piikii/application/port/output/persistence/PlacePort.kt b/piikii-application/src/main/kotlin/com/piikii/application/port/output/persistence/PlacePort.kt
index 1a5f4805..1abf6522 100644
--- a/piikii-application/src/main/kotlin/com/piikii/application/port/output/persistence/PlacePort.kt
+++ b/piikii-application/src/main/kotlin/com/piikii/application/port/output/persistence/PlacePort.kt
@@ -5,11 +5,13 @@ import com.piikii.application.domain.generic.UuidTypeId
 import com.piikii.application.domain.place.Place
 
 interface PlaceQueryPort {
-    fun findByPlaceId(placeId: LongTypeId): Place?
+    fun findByPlaceId(placeId: LongTypeId): Place
 
     fun findAllByPlaceIds(placeIds: List<LongTypeId>): List<Place>
 
     fun findAllByRoomUid(roomUid: UuidTypeId): List<Place>
+
+    fun findConfirmedByScheduleId(scheduleId: LongTypeId): Place?
 }
 
 interface PlaceCommandPort {
diff --git a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/CourseApi.kt b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/CourseApi.kt
index 9e534ca3..85b6e18b 100644
--- a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/CourseApi.kt
+++ b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/CourseApi.kt
@@ -1,5 +1,6 @@
 package com.piikii.input.http.controller
 
+import com.piikii.application.domain.generic.LongTypeId
 import com.piikii.application.domain.generic.UuidTypeId
 import com.piikii.application.port.input.CourseUseCase
 import com.piikii.application.port.input.dto.response.CourseResponse
@@ -10,6 +11,7 @@ import jakarta.validation.constraints.NotNull
 import org.springframework.http.HttpStatus
 import org.springframework.validation.annotation.Validated
 import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PatchMapping
 import org.springframework.web.bind.annotation.PathVariable
 import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.ResponseStatus
@@ -41,4 +43,14 @@ class CourseApi(
             data = courseUseCase.retrieveCourse(UuidTypeId(roomUid)),
         )
     }
+
+    @ResponseStatus(HttpStatus.OK)
+    @PatchMapping("/place/{placeId}")
+    override fun updateCoursePlace(
+        @NotNull @PathVariable roomUid: UUID,
+        @NotNull @PathVariable placeId: Long,
+    ): ResponseForm<Unit> {
+        courseUseCase.updateCoursePlace(UuidTypeId(roomUid), LongTypeId(placeId))
+        return ResponseForm.EMPTY_RESPONSE
+    }
 }
diff --git a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/docs/CourseApiDocs.kt b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/docs/CourseApiDocs.kt
index 6bb53e63..f5570db3 100644
--- a/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/docs/CourseApiDocs.kt
+++ b/piikii-input-http/src/main/kotlin/com/piikii/input/http/controller/docs/CourseApiDocs.kt
@@ -53,10 +53,37 @@ interface CourseApiDocs {
     fun retrieveCourse(
         @Parameter(
             name = "roomUid",
-            description = "코스 생성 여부를 조회할 방 uuid",
+            description = "코스를 조회할 방 uuid",
             required = true,
             `in` = ParameterIn.PATH,
         )
         @NotNull roomUid: UUID,
     ): ResponseForm<CourseResponse>
+
+    @Operation(summary = "코스 장소 수정 API", description = "코스 대상 장소를 수정합니다.")
+    @ApiResponses(
+        value = [
+            ApiResponse(
+                responseCode = "200",
+                description = "OK success",
+                content = [Content(schema = Schema(implementation = ResponseForm::class))],
+            ),
+        ],
+    )
+    fun updateCoursePlace(
+        @Parameter(
+            name = "roomUid",
+            description = "코스를 수정할 방 uuid",
+            required = true,
+            `in` = ParameterIn.PATH,
+        )
+        @NotNull roomUid: UUID,
+        @Parameter(
+            name = "placeId",
+            description = "코스 장소로 선정할 장소 id",
+            required = true,
+            `in` = ParameterIn.PATH,
+        )
+        @NotNull placeId: Long,
+    ): ResponseForm<Unit>
 }
diff --git a/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/adapter/PlaceAdapter.kt b/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/adapter/PlaceAdapter.kt
index 9b3a772e..ae2441af 100644
--- a/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/adapter/PlaceAdapter.kt
+++ b/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/adapter/PlaceAdapter.kt
@@ -70,4 +70,13 @@ class PlaceAdapter(
     override fun findAllByRoomUid(roomUid: UuidTypeId): List<Place> {
         return placeRepository.findAllByRoomUid(roomUid).map { it.toDomain() }
     }
+
+    override fun findConfirmedByScheduleId(scheduleId: LongTypeId): Place? {
+        val places = placeRepository.findByScheduleIdAndConfirmed(scheduleId, true)
+        return places.singleOrNull()?.toDomain()
+            ?: throw PiikiiException(
+                exceptionCode = ExceptionCode.ACCESS_DENIED,
+                detailMessage = "중복된 장소 코스가 있습니다. 데이터를 확인하세요. Schedule ID : $scheduleId",
+            )
+    }
 }
diff --git a/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/persistence/repository/PlaceRepository.kt b/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/persistence/repository/PlaceRepository.kt
index a4132e35..3e8d0227 100644
--- a/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/persistence/repository/PlaceRepository.kt
+++ b/piikii-output-persistence/postgresql/src/main/kotlin/com/piikii/output/persistence/postgresql/persistence/repository/PlaceRepository.kt
@@ -7,4 +7,9 @@ import org.springframework.data.jpa.repository.JpaRepository
 
 interface PlaceRepository : JpaRepository<PlaceEntity, LongTypeId> {
     fun findAllByRoomUid(roomUid: UuidTypeId): List<PlaceEntity>
+
+    fun findByScheduleIdAndConfirmed(
+        scheduleId: LongTypeId,
+        confirmed: Boolean,
+    ): List<PlaceEntity>
 }