diff --git a/cd.sh b/cd.sh
index 707cafa..2b5abdf 100644
--- a/cd.sh
+++ b/cd.sh
@@ -15,12 +15,12 @@ cd_main () {
     cd_set_packages_repositories
     cd_set_packages_configuration
     cd_write_ca_certificates
-    cd_set_https_verification_off
+    [ "${CD_CA}" ] && cd_set_https_verification_off
     cd_update_packages_catalog
     cd_install_packages_tools
     cd_install_ca_certificates
     cd_update_ca_certificates
-    cd_set_https_verification_on
+    [ "${CD_CA}" ] && cd_set_https_verification_on
     cd_update_packages_catalog
     cd_upgrade_packages
     cd_install_git