diff --git a/.github/workflows/buildandtest.yml b/.github/workflows/buildandtest.yml
index 9533ec6fff..863b47dee2 100644
--- a/.github/workflows/buildandtest.yml
+++ b/.github/workflows/buildandtest.yml
@@ -19,7 +19,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macOS-latest]
+        # os: [ubuntu-latest, windows-latest, macOS-latest] - disable mac os due to cost
+        os: [ubuntu-latest, windows-latest]
         csproj: [Security.Certificates, Types, Core, Server, Client, Client.ComplexTypes, PubSub, Configuration, Gds]
         include:
           - framework: 'net10.0'