diff --git a/test/Project.toml b/test/Project.toml
index adf90b0..89edd33 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -7,7 +7,6 @@ GaussianRandomFields = "e4b2fa32-6e09-5554-b718-106ed5adafe9"
 HDF5 = "f67ccb44-e63f-5c2f-98bd-6dc0ccc4ba2f"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MPI = "da04e1cc-30fd-572f-bb4f-1f8673147195"
-MPIPreferences = "3da0fdf6-3ccc-4f1b-acd9-58baa6c99267"
 OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
 PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
@@ -15,14 +14,13 @@ SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 StableRNGs = "860ef19b-820b-49d6-a774-d7a799459cd3"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-ThreadPinning = "811555cd-349b-4f26-b7bc-1f208b848042"
 YAML = "ddb6d928-2868-570f-bddf-ab3f9cf99eb6"
 
 [compat]
 Distributions = "0.22, 0.23, 0.24, 0.25"
 GaussianRandomFields = "2.1.1"
 HDF5 = "0.14, 0.15, 0.16"
-MPI = "0.20"
+MPI = "0.19"
 StableRNGs = "1"
 YAML = "0.4"
-julia = "1.7"
+julia = "1.7"
\ No newline at end of file