diff --git a/src/molecule_plugins/vagrant/modules/vagrant.py b/src/molecule_plugins/vagrant/modules/vagrant.py
index 10661bc..f4ad7f6 100755
--- a/src/molecule_plugins/vagrant/modules/vagrant.py
+++ b/src/molecule_plugins/vagrant/modules/vagrant.py
@@ -503,10 +503,7 @@ def _conf_instance(self, instance_name):
         try:
             return self._vagrant.conf(vm_name=instance_name)
         except Exception:
-            msg = "Failed to get vagrant config for {}: See log file '{}'".format(
-                instance_name,
-                self._get_stderr_log(),
-            )
+            msg = f"Failed to get vagrant config for {instance_name}: See log file '{self._get_stderr_log()}'"
             with open(self._get_stderr_log(), encoding="utf-8") as f:
                 self.result["stderr"] = f.read()
                 self._module.fail_json(msg=msg, **self.result)
@@ -517,10 +514,7 @@ def _status_instance(self, instance_name):
 
             return {"name": s.name, "state": s.state, "provider": s.provider}
         except Exception:
-            msg = "Failed to get status for {}: See log file '{}'".format(
-                instance_name,
-                self._get_stderr_log(),
-            )
+            msg = f"Failed to get status for {instance_name}: See log file '{self._get_stderr_log()}'"
             with open(self._get_stderr_log(), encoding="utf-8") as f:
                 self.result["stderr"] = f.read()
                 self._module.fail_json(msg=msg, **self.result)