diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index ac353b2c45..a2a52f0ebe 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -199,9 +199,12 @@ jobs:
      RANLIB: touch
   steps:   
   - script: |
-      brew update
-      brew install llvm flang
-      make TARGET=NEHALEM CC=/usr/local/opt/llvm/bin/clang FC=/usr/local/opt/flang/bin/flang NO_SHARED=1
+      wget https://github.com/macports/macports-base/releases/download/v2.12.6/MacPorts-2.12.6-15-Sequoia.pkg
+      sudo installer -pkg MacPorts-2.12.6-15-Sequoia.pkg -target /
+      export PATH=$PATH:/opt/local/bin
+      hash -r
+      sudo port install llvm-23
+      make TARGET=NEHALEM CC=clang-23 FC=flang-23 NO_SHARED=1
 
 - job: OSX_OpenMP_Clang
   timeoutInMinutes: 100