diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 352b2a2655..4e35534222 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -33,7 +33,11 @@ stages:
     - checkout: self
       submodules: recursive
       displayName: 'Checkout code'
-
+    - script: |
+         git submodule foreach --recursive git clean -xfdf
+         git submodule foreach --recursive git reset --hard
+         git submodule update --init --recursive
+      displayName: 'reset submodules'
     - script: |
         sudo modprobe overlay
         CACHE_OPTIONS="SONIC_DPKG_CACHE_METHOD=rcache SONIC_DPKG_CACHE_SOURCE=/nfs/dpkg_cache/broadcom"
@@ -54,6 +58,11 @@ stages:
       submodules: recursive
       displayName: 'Checkout code'
 
+    - script: |
+         git submodule foreach --recursive git clean -xfdf
+         git submodule foreach --recursive git reset --hard
+         git submodule update --init --recursive
+      displayName: 'reset submodules'
     - script: |
         sudo modprobe overlay
         CACHE_OPTIONS="SONIC_DPKG_CACHE_METHOD=rcache SONIC_DPKG_CACHE_SOURCE=/nfs/dpkg_cache/mellanox"
@@ -74,6 +83,11 @@ stages:
       submodules: recursive
       displayName: 'Checkout code'
 
+    - script: |
+         git submodule foreach --recursive git clean -xfdf
+         git submodule foreach --recursive git reset --hard
+         git submodule update --init --recursive
+      displayName: 'reset submodules'
     - script: |
         echo $(Build.BuildNumber)
         sudo modprobe overlay