diff --git a/src/Dapper.Contrib/SqlMapperExtensions.Async.cs b/src/Dapper.Contrib/SqlMapperExtensions.Async.cs
index c93e39a4..5fcfaa05 100644
--- a/src/Dapper.Contrib/SqlMapperExtensions.Async.cs
+++ b/src/Dapper.Contrib/SqlMapperExtensions.Async.cs
@@ -136,7 +136,7 @@ private static async Task<IEnumerable<T>> GetAllAsyncImpl<T>(IDbConnection conne
         /// <param name="commandTimeout">Number of seconds before command execution timeout</param>
         /// <param name="sqlAdapter">The specific ISqlAdapter to use, auto-detected based on connection if null</param>
         /// <returns>Identity of inserted entity</returns>
-        public static Task<int> InsertAsync<T>(this IDbConnection connection, T entityToInsert, IDbTransaction transaction = null,
+        public async static Task<int> InsertAsync<T>(this IDbConnection connection, T entityToInsert, IDbTransaction transaction = null,
             int? commandTimeout = null, ISqlAdapter sqlAdapter = null) where T : class
         {
             var type = typeof(T);
@@ -188,13 +188,13 @@ public static Task<int> InsertAsync<T>(this IDbConnection connection, T entityTo
 
             if (!isList)    //single entity
             {
-                return sqlAdapter.InsertAsync(connection, transaction, commandTimeout, name, sbColumnList.ToString(),
+                return await sqlAdapter.InsertAsync(connection, transaction, commandTimeout, name, sbColumnList.ToString(),
                     sbParameterList.ToString(), keyProperties, entityToInsert);
             }
 
             //insert list of entities
             var cmd = $"INSERT INTO {name} ({sbColumnList}) values ({sbParameterList})";
-            return connection.ExecuteAsync(cmd, entityToInsert, transaction, commandTimeout);
+            return await connection.ExecuteAsync(cmd, entityToInsert, transaction, commandTimeout);
         }
 
         /// <summary>