diff --git a/Project.toml b/Project.toml
index d3275b33563..cf5f281bc04 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,6 +11,7 @@ Artifacts = "56f22d72-fd6d-98f1-02f0-08ddc0907c33"
 AtmosphericProfilesLibrary = "86bc3604-9858-485a-bdbe-831ec50de11d"
 ClimaComms = "3a4d1b5c-c61d-41fd-a00a-5873ba7a1b0d"
 ClimaCore = "d414da3d-4745-48bb-8d80-42e94e092884"
+ClimaDiagnostics = "1ecacbb8-0713-4841-9a07-eb5aa8a2d53f"
 ClimaParams = "5c42b081-d73a-476f-9059-fd94b934656c"
 ClimaTimeSteppers = "595c0a79-7f3d-439a-bc5a-b232dc3bde79"
 ClimaUtilities = "b3f4f4ca-9299-4f7f-bd9b-81e1242a7513"