diff --git a/build.gradle.kts b/build.gradle.kts
index b4a6c14..19555b2 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ plugins {
 }
 
 group = "team.themoment.datagsm.sdk"
-version = "1.1.1"
+version = "1.2.0"
 
 java {
     toolchain {
diff --git a/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApi.java b/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApi.java
index 2fbf056..c038d8b 100644
--- a/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApi.java
+++ b/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApi.java
@@ -35,7 +35,7 @@ class StudentRequest {
         private Sex sex;
         private StudentRole role;
         private Integer dormitoryRoom;
-        private Boolean isGraduate;
+        private EnrollmentFilter enrollmentFilter;
         private Integer page;
         private Integer size;
         private StudentSortBy sortBy;
@@ -92,8 +92,8 @@ public StudentRequest dormitoryRoom(Integer dormitoryRoom) {
             return this;
         }
 
-        public StudentRequest isGraduate(Boolean isGraduate) {
-            this.isGraduate = isGraduate;
+        public StudentRequest enrollmentFilter(EnrollmentFilter enrollmentFilter) {
+            this.enrollmentFilter = enrollmentFilter;
             return this;
         }
 
@@ -153,8 +153,8 @@ public Integer getDormitoryRoom() {
             return dormitoryRoom;
         }
 
-        public Boolean getIsGraduated() {
-            return isGraduate;
+        public EnrollmentFilter getEnrollmentFilter() {
+            return enrollmentFilter;
         }
 
         public Integer getPage() {
diff --git a/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApiImpl.java b/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApiImpl.java
index 007bec6..ad7f5b6 100644
--- a/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApiImpl.java
+++ b/src/main/java/team/themoment/datagsm/sdk/openapi/client/StudentApiImpl.java
@@ -73,8 +73,8 @@ private Map<String, String> buildStudentQueryParams(StudentRequest request) {
         if (request.getDormitoryRoom() != null) {
             params.put("dormitoryRoom", request.getDormitoryRoom().toString());
         }
-        if (request.getIsGraduated() != null) {
-            params.put("isGraduated", request.getIsGraduated().toString());
+        if (request.getEnrollmentFilter() != null) {
+            request.getEnrollmentFilter().applyToParams(params);
         }
         if (request.getPage() != null) {
             params.put("page", request.getPage().toString());
diff --git a/src/main/java/team/themoment/datagsm/sdk/openapi/model/EnrollmentFilter.java b/src/main/java/team/themoment/datagsm/sdk/openapi/model/EnrollmentFilter.java
new file mode 100644
index 0000000..9492123
--- /dev/null
+++ b/src/main/java/team/themoment/datagsm/sdk/openapi/model/EnrollmentFilter.java
@@ -0,0 +1,45 @@
+package team.themoment.datagsm.sdk.openapi.model;
+
+import java.util.Map;
+
+public abstract class EnrollmentFilter {
+    EnrollmentFilter() {}
+
+    public static OnlyEnrolled onlyEnrolled() { return new OnlyEnrolled(); }
+    public static Detailed detailed() { return new Detailed(); }
+
+    public abstract void applyToParams(Map<String, String> params);
+
+    public static final class OnlyEnrolled extends EnrollmentFilter {
+        private OnlyEnrolled() {}
+
+        @Override
+        public void applyToParams(Map<String, String> params) {
+            params.put("onlyEnrolled", "true");
+        }
+    }
+
+    public static final class Detailed extends EnrollmentFilter {
+        private Boolean includeGraduates = false;
+        private Boolean includeWithdrawn = false;
+
+        private Detailed() {}
+
+        public Detailed includeGraduates(boolean include) {
+            this.includeGraduates = include;
+            return this;
+        }
+
+        public Detailed includeWithdrawn(boolean include) {
+            this.includeWithdrawn = include;
+            return this;
+        }
+
+        @Override
+        public void applyToParams(Map<String, String> params) {
+            params.put("onlyEnrolled", "false");
+            if (includeGraduates != null) params.put("includeGraduates", includeGraduates.toString());
+            if (includeWithdrawn != null) params.put("includeWithdrawn", includeWithdrawn.toString());
+        }
+    }
+}