diff --git a/packages/hurl/src/runner/variable.rs b/packages/hurl/src/runner/variable.rs
index a18d1598e9b..dd4606bda91 100644
--- a/packages/hurl/src/runner/variable.rs
+++ b/packages/hurl/src/runner/variable.rs
@@ -104,6 +104,9 @@ impl VariableSet {
         Ok(())
     }
 
+    #[deprecated(
+        note = "This method is not yet ready for use: secret/private variables are still under development"
+    )]
     /// Inserts a secret variable named `name` with `value` into the variable set.
     ///
     /// Contrary to [`VariableSet::insert`], this method can not fail: a secret can override a