diff --git a/docs/MergeUpstreamRequest.md b/docs/MergeUpstreamRequest.md
index b21d3d5..065912e 100644
--- a/docs/MergeUpstreamRequest.md
+++ b/docs/MergeUpstreamRequest.md
@@ -4,3 +4,4 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **branch** | **String** |  |  [optional]
+**ffOnly** | **Boolean** |  |  [optional]
diff --git a/src/main/java/org/gitnex/tea4j/v2/models/MergeUpstreamRequest.java b/src/main/java/org/gitnex/tea4j/v2/models/MergeUpstreamRequest.java
index c84cc5f..87f4226 100644
--- a/src/main/java/org/gitnex/tea4j/v2/models/MergeUpstreamRequest.java
+++ b/src/main/java/org/gitnex/tea4j/v2/models/MergeUpstreamRequest.java
@@ -24,6 +24,9 @@ public class MergeUpstreamRequest implements Serializable {
   @SerializedName("branch")
   private String branch = null;
 
+  @SerializedName("ff_only")
+  private Boolean ffOnly = null;
+
   public MergeUpstreamRequest branch(String branch) {
     this.branch = branch;
     return this;
@@ -43,6 +46,25 @@ public class MergeUpstreamRequest implements Serializable {
     this.branch = branch;
   }
 
+  public MergeUpstreamRequest ffOnly(Boolean ffOnly) {
+    this.ffOnly = ffOnly;
+    return this;
+  }
+
+  /**
+   * Get ffOnly
+   *
+   * @return ffOnly
+   */
+  @Schema(description = "")
+  public Boolean isFfOnly() {
+    return ffOnly;
+  }
+
+  public void setFfOnly(Boolean ffOnly) {
+    this.ffOnly = ffOnly;
+  }
+
   @Override
   public boolean equals(java.lang.Object o) {
     if (this == o) {
@@ -52,12 +74,13 @@ public class MergeUpstreamRequest implements Serializable {
       return false;
     }
     MergeUpstreamRequest mergeUpstreamRequest = (MergeUpstreamRequest) o;
-    return Objects.equals(this.branch, mergeUpstreamRequest.branch);
+    return Objects.equals(this.branch, mergeUpstreamRequest.branch)
+        && Objects.equals(this.ffOnly, mergeUpstreamRequest.ffOnly);
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(branch);
+    return Objects.hash(branch, ffOnly);
   }
 
   @Override
@@ -66,6 +89,7 @@ public class MergeUpstreamRequest implements Serializable {
     sb.append("class MergeUpstreamRequest {\n");
 
     sb.append("    branch: ").append(toIndentedString(branch)).append("\n");
+    sb.append("    ffOnly: ").append(toIndentedString(ffOnly)).append("\n");
     sb.append("}");
     return sb.toString();
   }