diff --git a/server_environment/__manifest__.py b/server_environment/__manifest__.py
index eafa9f402..d67587c60 100644
--- a/server_environment/__manifest__.py
+++ b/server_environment/__manifest__.py
@@ -4,7 +4,7 @@
 
 {
     "name": "server configuration environment files",
-    "version": "17.0.1.1.0",
+    "version": "18.0.1.0.0",
     "depends": ["base", "base_sparse_field"],
     "author": "Camptocamp,Odoo Community Association (OCA)",
     "summary": "move some configurations out of the database",
diff --git a/server_environment/models/server_env_tech_name_mixin.py b/server_environment/models/server_env_tech_name_mixin.py
index d0b6bbbd9..30cd890d1 100644
--- a/server_environment/models/server_env_tech_name_mixin.py
+++ b/server_environment/models/server_env_tech_name_mixin.py
@@ -4,8 +4,6 @@
 
 from odoo import api, fields, models
 
-from odoo.addons.http_routing.models.ir_http import slugify
-
 
 class ServerEnvTechNameMixin(models.AbstractModel):
     """Provides a tech_name field to be used in server env vars as unique key.
@@ -72,6 +70,5 @@ def _handle_tech_name(self, vals):
         if not vals.get("tech_name") and vals.get("name"):
             vals["tech_name"] = self._normalize_tech_name(vals["name"])
 
-    @staticmethod
-    def _normalize_tech_name(name):
-        return slugify(name).replace("-", "_")
+    def _normalize_tech_name(self, name):
+        return self.env["ir.http"]._slugify(name).replace("-", "_")