diff --git a/test/Project.toml b/test/Project.toml
index 97c506e479..ad45fcbb50 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -9,6 +9,7 @@ ITensors = "9136182c-28ba-11e9-034c-db9fb085ebd5"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MappedArrays = "dbb5928d-eab1-5f90-85c2-b9b0edb7c900"
 NDTensors = "23ae76d9-e61a-49c4-8f12-3f1a16adf9cf"
+QuadGK = "1fd47b50-473d-5c70-9696-f719f8f3bcdc"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Suppressor = "fd094767-a336-5f1f-9728-57cf17d0bbfb"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"