diff --git a/cspell.yaml b/cspell.yaml
index 3d5a5009cdb..98e7cc43a05 100644
--- a/cspell.yaml
+++ b/cspell.yaml
@@ -142,8 +142,6 @@ words:
   - lropaging
   - lstrip
   - lzutf
-  - MACVMIMAGE
-  - MACVMIMAGEM
   - mday
   - methodsubscriptionid
   - mgmt
diff --git a/eng/common/pipelines/templates/variables/image.yml b/eng/common/pipelines/templates/variables/image.yml
index 8c0b780abc1..87d9439f813 100644
--- a/eng/common/pipelines/templates/variables/image.yml
+++ b/eng/common/pipelines/templates/variables/image.yml
@@ -17,15 +17,15 @@ variables:
   - name: LINUXNEXTVMIMAGE
     value: ubuntu-24.04
   - name: LINUXARMVMIMAGE
-    value: azsdk-pool-mms-mariner-2-arm-1espt
+    value: azure-linux-3-arm64
   - name: WINDOWSVMIMAGE
     value: windows-2022
   - name: WINDOWSARMVMIMAGE
     value: windows-2022-arm64-1espt
-  - name: MACVMIMAGE # mac - arm64
-    value: macos-latest
-  - name: MACVMIMAGE13 # mac - x64
-    value: macos-13
+  - name: MAC_ARM_VM_IMAGE # mac - arm64
+    value: macos-latest-internal
+  - name: MAC_X64_VM_IMAGE # mac - x64
+    value: macos-15
 
   # Values required for pool.os field in 1es pipeline templates. Variable form
   # cannot be used, instead those values must be written directly into pool.os.
diff --git a/eng/tsp-core/pipelines/jobs/cli/build-tsp-cli.yml b/eng/tsp-core/pipelines/jobs/cli/build-tsp-cli.yml
index 41e79000ca7..da0d39ebed9 100644
--- a/eng/tsp-core/pipelines/jobs/cli/build-tsp-cli.yml
+++ b/eng/tsp-core/pipelines/jobs/cli/build-tsp-cli.yml
@@ -17,11 +17,11 @@ jobs:
         hostArchitecture: arm64
       ${{ if eq(parameters.platform, 'macos-x64') }}:
         name: $(MACPOOL)
-        vmImage: $(MACVMIMAGE13)
+        vmImage: $(MAC_X64_VM_IMAGE)
         os: macOS
       ${{ if eq(parameters.platform, 'macos-arm64') }}:
         name: $(MACPOOL)
-        vmImage: $(MACVMIMAGE)
+        vmImage: $(MAC_ARM_VM_IMAGE)
         os: macOS
       ${{ if eq(parameters.platform, 'windows-x64') }}:
         name: $(WINDOWSPOOL)
diff --git a/eng/tsp-core/pipelines/jobs/cli/verify-tsp-cli.yml b/eng/tsp-core/pipelines/jobs/cli/verify-tsp-cli.yml
index 566ede09b30..8551b416fd2 100644
--- a/eng/tsp-core/pipelines/jobs/cli/verify-tsp-cli.yml
+++ b/eng/tsp-core/pipelines/jobs/cli/verify-tsp-cli.yml
@@ -23,11 +23,11 @@ jobs:
         hostArchitecture: arm64
       ${{ if eq(parameters.platform, 'macos-x64') }}:
         name: $(MACPOOL)
-        vmImage: $(MACVMIMAGE13)
+        vmImage: $(MAC_X64_VM_IMAGE)
         os: macOS
       ${{ if eq(parameters.platform, 'macos-arm64') }}:
         name: $(MACPOOL)
-        vmImage: $(MACVMIMAGE)
+        vmImage: $(MAC_ARM_VM_IMAGE)
         os: macOS
       ${{ if eq(parameters.platform, 'windows-x64') }}:
         name: $(WINDOWSPOOL)
diff --git a/eng/tsp-core/pipelines/publish.yml b/eng/tsp-core/pipelines/publish.yml
index ab6e626181d..b2d43f64177 100644
--- a/eng/tsp-core/pipelines/publish.yml
+++ b/eng/tsp-core/pipelines/publish.yml
@@ -6,6 +6,7 @@ trigger:
       - main
       # For patch releases
       - release/*
+      - upgrade/pool-images
   paths:
     exclude:
       - packages/http-client-csharp