diff --git a/.azure-pipelines/azure-pipelines-Official.yml b/.azure-pipelines/azure-pipelines-Official.yml
index a5a08167ca1d..56d88751f690 100644
--- a/.azure-pipelines/azure-pipelines-Official.yml
+++ b/.azure-pipelines/azure-pipelines-Official.yml
@@ -14,7 +14,7 @@ schedules:
     - 202012
   always: true
 
-pool: sonicbld
+pool: sonicbld-1es
 
 stages:
 - stage: Build
diff --git a/.azure-pipelines/azure-pipelines-UpgrateVersion.yml b/.azure-pipelines/azure-pipelines-UpgrateVersion.yml
index 1d2a0fbae6dc..a6946f745e76 100644
--- a/.azure-pipelines/azure-pipelines-UpgrateVersion.yml
+++ b/.azure-pipelines/azure-pipelines-UpgrateVersion.yml
@@ -26,7 +26,7 @@ resources:
     ref: master
     endpoint: sonic-net
 
-pool: sonicbld
+pool: sonicbld-1es
 
 parameters:
 - name: 'jobFilters'
diff --git a/.azure-pipelines/build-template.yml b/.azure-pipelines/build-template.yml
index 48bc3293b964..487e67296a0c 100644
--- a/.azure-pipelines/build-template.yml
+++ b/.azure-pipelines/build-template.yml
@@ -35,9 +35,9 @@ parameters:
 - name: pool
   type: string
   values:
-  - sonicbld
+  - sonicbld-1es
   - sonicbld_8c
-  default: sonicbld
+  default: sonicbld-1es
 
 - name: dbg_image
   type: boolean
diff --git a/.azure-pipelines/docker-sonic-slave-template.yml b/.azure-pipelines/docker-sonic-slave-template.yml
index 828f958e5ed2..fe4f87e71b7b 100644
--- a/.azure-pipelines/docker-sonic-slave-template.yml
+++ b/.azure-pipelines/docker-sonic-slave-template.yml
@@ -28,9 +28,9 @@ parameters:
   default: sonicdev
 - name: pool
   type: string
-  default: sonicbld
+  default: sonicbld-1es
   values:
-  - sonicbld
+  - sonicbld-1es
   - sonicbld-arm64
   - sonicbld-armhf
 
diff --git a/.azure-pipelines/docker-sonic-slave.yml b/.azure-pipelines/docker-sonic-slave.yml
index 4c679f7f9518..332d6c4932ad 100644
--- a/.azure-pipelines/docker-sonic-slave.yml
+++ b/.azure-pipelines/docker-sonic-slave.yml
@@ -63,7 +63,7 @@ stages:
       - ${{ each arch in parameters.arches }}:
         - template: .azure-pipelines/docker-sonic-slave-template.yml@buildimage
           parameters:
-            pool: sonicbld
+            pool: sonicbld-1es
             arch: ${{ arch }}
             dist: ${{ dist }}
             ${{ if ne(arch, 'amd64') }}:
diff --git a/.azure-pipelines/dpkg-cache-cleanup.yml b/.azure-pipelines/dpkg-cache-cleanup.yml
index 2789d1818819..52b0e866a6c7 100644
--- a/.azure-pipelines/dpkg-cache-cleanup.yml
+++ b/.azure-pipelines/dpkg-cache-cleanup.yml
@@ -16,7 +16,7 @@ pr: none
 
 jobs:
 - job: Build
-  pool: sonicbld
+  pool: sonicbld-1es
   timeoutInMinutes: 5
   steps:
   - checkout: none
diff --git a/.azure-pipelines/official-build-cache.yml b/.azure-pipelines/official-build-cache.yml
index 94fd48ede501..8e861d0a6020 100644
--- a/.azure-pipelines/official-build-cache.yml
+++ b/.azure-pipelines/official-build-cache.yml
@@ -16,7 +16,7 @@ pr: none
 
 stages:
 - stage: Build
-  pool: sonicbld
+  pool: sonicbld-1es
   variables:
   - name: CACHE_MODE
     value: cache
diff --git a/.azure-pipelines/official-build-multi-asic.yml b/.azure-pipelines/official-build-multi-asic.yml
index 8fe0be32db10..518c87a184e1 100644
--- a/.azure-pipelines/official-build-multi-asic.yml
+++ b/.azure-pipelines/official-build-multi-asic.yml
@@ -16,7 +16,7 @@ pr: none
 
 stages:
 - stage: Build
-  pool: sonicbld
+  pool: sonicbld-1es
   variables:
   - template: azure-pipelines-repd-build-variables.yml
   - name: CACHE_MODE
diff --git a/.azure-pipelines/official-build.yml b/.azure-pipelines/official-build.yml
index 049935940bd6..95839e14b33f 100644
--- a/.azure-pipelines/official-build.yml
+++ b/.azure-pipelines/official-build.yml
@@ -34,7 +34,7 @@ variables:
 
 stages:
 - stage: Build
-  pool: sonicbld
+  pool: sonicbld-1es
   variables:
   - name: CACHE_MODE
     value: wcache
diff --git a/.azure-pipelines/template-commonlib.yml b/.azure-pipelines/template-commonlib.yml
index cd7551d83823..c821998ae815 100644
--- a/.azure-pipelines/template-commonlib.yml
+++ b/.azure-pipelines/template-commonlib.yml
@@ -11,7 +11,7 @@ jobs:
   - job: Build_${{ arch }}
     timeoutInMinutes: 120
     ${{ if eq(arch,'amd64') }}:
-      pool: sonicbld
+      pool: sonicbld-1es
     ${{ else }}:
       pool: sonicbld-${{ arch }}
     variables:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 1500dd78757b..1d14ef132616 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -47,7 +47,7 @@ variables:
 
 stages:
 - stage: BuildVS
-  pool: sonicbld
+  pool: sonicbld-1es
   jobs:
   - template: .azure-pipelines/azure-pipelines-build.yml
     parameters:
@@ -56,7 +56,7 @@ stages:
       - name: vs
 
 - stage: Build
-  pool: sonicbld
+  pool: sonicbld-1es
   dependsOn: []
   jobs:
   - template: .azure-pipelines/azure-pipelines-build.yml
@@ -141,7 +141,7 @@ stages:
         testRunTitle: vstest
 
   - job: t0_elastictest
-    pool: ubuntu-20.04
+    pool: sonic-ubuntu-1c
     displayName: "kvmtest-t0 by Elastictest"
     timeoutInMinutes: 240
     continueOnError: false
@@ -154,7 +154,7 @@ stages:
         MGMT_BRANCH: "202205"
 
   - job: t0_2vlans_elastictest
-    pool: ubuntu-20.04
+    pool: sonic-ubuntu-1c
     displayName: "kvmtest-t0-2vlans by Elastictest"
     timeoutInMinutes: 240
     continueOnError: false
@@ -169,7 +169,7 @@ stages:
         MGMT_BRANCH: "202205"
 
   - job: t1_lag_elastictest
-    pool: ubuntu-20.04
+    pool: sonic-ubuntu-1c
     displayName: "kvmtest-t1-lag by Elastictest"
     timeoutInMinutes: 240
     continueOnError: false
@@ -182,7 +182,7 @@ stages:
         MGMT_BRANCH: "202205"
 
   - job: sonic_t0_elastictest
-    pool: ubuntu-20.04
+    pool: sonic-ubuntu-1c
     displayName: "kvmtest-t0-sonic by Elastictest"
     timeoutInMinutes: 240
     continueOnError: false
@@ -198,7 +198,7 @@ stages:
           MGMT_BRANCH: "202205"
 
   - job: dualtor_elastictest
-    pool: ubuntu-20.04
+    pool: sonic-ubuntu-1c
     displayName: "kvmtest-dualtor-t0 by Elastictest"
     timeoutInMinutes: 240
     continueOnError: false
@@ -212,7 +212,7 @@ stages:
           MGMT_BRANCH: "202205"
 
   - job: multi_asic_elastictest
-    pool: ubuntu-20.04
+    pool: sonic-ubuntu-1c
     displayName: "kvmtest-multi-asic-t1-lag by Elastictest"
     timeoutInMinutes: 1080
     continueOnError: false