diff --git a/src/onedrive.d b/src/onedrive.d
index 44fcb3c0..615cd905 100644
--- a/src/onedrive.d
+++ b/src/onedrive.d
@@ -161,7 +161,7 @@ final class OneDriveApi
 	}
 
 	// https://dev.onedrive.com/items/upload_put.htm
-	auto simpleUpload(string localPath, const(char)[] remotePath, const(char)[] eTag = null)
+	JSONValue simpleUpload(string localPath, const(char)[] remotePath, const(char)[] eTag = null)
 	{
 		checkAccessTokenExpired();
 		char[] url = itemByPathUrl ~ remotePath ~ ":/content";
@@ -178,6 +178,20 @@ final class OneDriveApi
 		return parseJSON(content);
 	}
 
+	// https://dev.onedrive.com/items/update.htm
+	JSONValue updateById(const(char)[] id, JSONValue data, const(char)[] eTag = null)
+	{
+		checkAccessTokenExpired();
+		char[] url = itemByIdUrl ~ id;
+		if (eTag) http.addRequestHeader("If-Match", eTag);
+		http.addRequestHeader("Content-Type", "application/json");
+		auto result = patch(url, data.toString());
+		http.clearRequestHeaders();
+		// remove the headers
+		setAccessToken(accessToken);
+		return result;
+	}
+
 	private void redeemToken(const(char)[] authCode)
 	{
 		string postData = "client_id=" ~ clientId ~ "&redirect_url=" ~ redirectUrl ~ "&client_secret=" ~ clientSecret;
@@ -215,12 +229,17 @@ final class OneDriveApi
 			newToken();
 		}
 	}
-	
+
 	private auto get(const(char)[] url)
 	{
 		return parseJSON(.get(url, http));
 	}
 
+	private auto patch(T)(const(char)[] url, const(T)[] patchData)
+	{
+		return parseJSON(.patch(url, patchData, http));
+	}
+
 	private auto post(T)(const(char)[] url, const(T)[] postData)
 	{
 		return parseJSON(.post(url, postData, http));