diff --git a/Snowflake.Data/Core/Session/SessionPool.cs b/Snowflake.Data/Core/Session/SessionPool.cs
index 439afbd48..14ad70848 100644
--- a/Snowflake.Data/Core/Session/SessionPool.cs
+++ b/Snowflake.Data/Core/Session/SessionPool.cs
@@ -187,7 +187,7 @@ internal void ClearAllPools()
             {
                 foreach (SFSession session in _sessions)
                 {
-                    Task.Run(() => session.close());
+                    session.close(); // it is left synchronously here because too much async tasks slows down testing
                 }
                 _sessions.Clear();
             }