diff --git a/test/Project.toml b/test/Project.toml
index e8e4e64..1e3e0a0 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -7,3 +7,6 @@ MadNLP = "2621e9c9-9eb4-46b1-8089-e8c72242dfb6"
 MadNLPGPU = "d72a61cc-809d-412f-99be-fd81f4b8a598"
 PEtab = "48d54b35-e43e-4a66-a5a1-dde6b987cf69"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[compat]
+PEtab = "5.4.1"