diff --git a/scripts/custom-docker-build b/scripts/custom-docker-build
index eb9b2a3..52d5281 100755
--- a/scripts/custom-docker-build
+++ b/scripts/custom-docker-build
@@ -42,6 +42,10 @@ function print_chrome_args() {
             CHROME_VERSION=71.0.3578.98-1
             CHROME_DRIVER_VERSION=2.45
             ;;
+        73|73.0)
+            CHROME_VERSION=73.0.3683.103-1
+            CHROME_DRIVER_VERSION=73.0.3683.68
+            ;;
         *) echo "Unknown chrome version $1"; exit 1;
     esac
     printf -- "--build-arg CHROME_VERSION=%s " "$CHROME_VERSION"