diff --git a/browser_patches/upload.sh b/browser_patches/upload.sh
index 568f683029..c1df5c0139 100755
--- a/browser_patches/upload.sh
+++ b/browser_patches/upload.sh
@@ -43,6 +43,17 @@ if [[ ("$2" == '--check') ]]; then
   fi
 fi
 
+GENERATE_MD5_HASH=$(cat <<EOF
+  const crypto = require('crypto');
+  const fs = require('fs');
+  const buffer = fs.readFileSync(process.argv[1]);
+  console.log(crypto.createHash('md5').update(buffer).digest('base64'));
+EOF
+)
+
+MD5_HASH=$(node -e "${GENERATE_MD5_HASH}" "${ZIP_PATH}")
+echo "MD5 hash: ${MD5_HASH}"
+
 if ! [[ -f $ZIP_PATH ]]; then
   echo "ERROR: ${ZIP_PATH} does not exist"
   exit 1
@@ -55,9 +66,9 @@ if [[ $(uname) == MINGW* ]]; then
   # Convert POSIX path to MSYS
   WIN_PATH=$({ cd $(dirname "$ZIP_PATH") && pwd -W; } | sed 's|/|\\|g')
   WIN_PATH="${WIN_PATH}\\$(basename "$ZIP_PATH")"
-  az storage blob upload -c builds --account-key "$AZ_ACCOUNT_KEY" --account-name "$AZ_ACCOUNT_NAME" -f "$WIN_PATH" -n "$BLOB_PATH"
+  az storage blob upload -c builds --account-key "$AZ_ACCOUNT_KEY" --account-name "$AZ_ACCOUNT_NAME" -f "$WIN_PATH" -n "$BLOB_PATH" --content-md5 "${MD5_HASH}"
 else
-  az storage blob upload -c builds --account-key "$AZ_ACCOUNT_KEY" --account-name "$AZ_ACCOUNT_NAME" -f "$ZIP_PATH" -n "$BLOB_PATH"
+  az storage blob upload -c builds --account-key "$AZ_ACCOUNT_KEY" --account-name "$AZ_ACCOUNT_NAME" -f "$ZIP_PATH" -n "$BLOB_PATH" --content-md5 "${MD5_HASH}"
 fi
 
 echo "UPLOAD SUCCESSFUL!"