diff --git a/docs/api-contract.md b/docs/api-contract.md
index 1689e11..7d785f5 100644
--- a/docs/api-contract.md
+++ b/docs/api-contract.md
@@ -188,6 +188,7 @@ Coverage notes: rows list direct tests when a symbol is named in test names or r
 | method | PullService.UndismissReview | `func (s *PullService) UndismissReview(ctx context.Context, owner, repo string, index, reviewID int64) error` | UndismissReview undismisses a pull request review. | No direct tests. |
 | method | PullService.Update | `func (s *PullService) Update(ctx context.Context, owner, repo string, index int64) error` | Update updates a pull request branch with the base branch. | No direct tests. |
 | method | ReleaseService.DeleteAsset | `func (s *ReleaseService) DeleteAsset(ctx context.Context, owner, repo string, releaseID, assetID int64) error` | DeleteAsset deletes a single asset from a release. | No direct tests. |
+| method | ReleaseService.EditAsset | `func (s *ReleaseService) EditAsset(ctx context.Context, owner, repo string, releaseID, attachmentID int64, opts *types.EditAttachmentOptions) (*types.Attachment, error)` | EditAsset updates a release asset. | `TestReleaseService_EditAttachment_Good` |
 | method | ReleaseService.DeleteByTag | `func (s *ReleaseService) DeleteByTag(ctx context.Context, owner, repo, tag string) error` | DeleteByTag deletes a release by its tag name. | No direct tests. |
 | method | ReleaseService.GetAsset | `func (s *ReleaseService) GetAsset(ctx context.Context, owner, repo string, releaseID, assetID int64) (*types.Attachment, error)` | GetAsset returns a single asset for a release. | No direct tests. |
 | method | ReleaseService.GetByTag | `func (s *ReleaseService) GetByTag(ctx context.Context, owner, repo, tag string) (*types.Release, error)` | GetByTag returns a release by its tag name. | `TestReleaseService_Good_GetByTag` |
diff --git a/releases.go b/releases.go
index 4d833fd..66e5ef4 100644
--- a/releases.go
+++ b/releases.go
@@ -96,11 +96,26 @@ func (s *ReleaseService) CreateAttachment(ctx context.Context, owner, repo strin
 	return &out, nil
 }
 
+// EditAttachment updates a release attachment.
+func (s *ReleaseService) EditAttachment(ctx context.Context, owner, repo string, releaseID, attachmentID int64, opts *types.EditAttachmentOptions) (*types.Attachment, error) {
+	path := ResolvePath("/api/v1/repos/{owner}/{repo}/releases/{id}/assets/{attachment_id}", pathParams("owner", owner, "repo", repo, "id", int64String(releaseID), "attachment_id", int64String(attachmentID)))
+	var out types.Attachment
+	if err := s.client.Patch(ctx, path, opts, &out); err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
 // CreateAsset uploads a new asset to a release.
 func (s *ReleaseService) CreateAsset(ctx context.Context, owner, repo string, releaseID int64, opts *ReleaseAttachmentUploadOptions, filename string, content io.Reader) (*types.Attachment, error) {
 	return s.CreateAttachment(ctx, owner, repo, releaseID, opts, filename, content)
 }
 
+// EditAsset updates a release asset.
+func (s *ReleaseService) EditAsset(ctx context.Context, owner, repo string, releaseID, attachmentID int64, opts *types.EditAttachmentOptions) (*types.Attachment, error) {
+	return s.EditAttachment(ctx, owner, repo, releaseID, attachmentID, opts)
+}
+
 // IterAssets returns an iterator over all assets for a release.
 func (s *ReleaseService) IterAssets(ctx context.Context, owner, repo string, releaseID int64) iter.Seq2[types.Attachment, error] {
 	path := ResolvePath("/api/v1/repos/{owner}/{repo}/releases/{releaseID}/assets", pathParams("owner", owner, "repo", repo, "releaseID", int64String(releaseID)))
diff --git a/releases_test.go b/releases_test.go
index 1779aa2..cfe8380 100644
--- a/releases_test.go
+++ b/releases_test.go
@@ -247,3 +247,32 @@ func TestReleaseService_CreateAttachmentExternalURL_Good(t *testing.T) {
 		t.Fatalf("got name=%q", attachment.Name)
 	}
 }
+
+func TestReleaseService_EditAttachment_Good(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPatch {
+			t.Errorf("expected PATCH, got %s", r.Method)
+		}
+		if r.URL.Path != "/api/v1/repos/core/go-forge/releases/1/assets/4" {
+			t.Errorf("wrong path: %s", r.URL.Path)
+			http.NotFound(w, r)
+			return
+		}
+		var body types.EditAttachmentOptions
+		json.NewDecoder(r.Body).Decode(&body)
+		if body.Name != "release-notes.pdf" {
+			t.Fatalf("got body=%#v", body)
+		}
+		json.NewEncoder(w).Encode(types.Attachment{ID: 4, Name: body.Name})
+	}))
+	defer srv.Close()
+
+	f := NewForge(srv.URL, "tok")
+	attachment, err := f.Releases.EditAttachment(context.Background(), "core", "go-forge", 1, 4, &types.EditAttachmentOptions{Name: "release-notes.pdf"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if attachment.Name != "release-notes.pdf" {
+		t.Fatalf("got name=%q", attachment.Name)
+	}
+}