diff --git a/docs/Project.toml b/docs/Project.toml
index 1841cbae36c44ba32375ba35dcdc01e6bbd2b8ef..331d94b5741a87a4e94f9043edce687a1d7496ef 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -1,4 +1,5 @@
 [deps]
+CairoMakie = "13f3f980-e62b-5c42-98c6-ff1f3baf88f0"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 FHist = "68837c9b-b678-4cd5-9925-8a54edc8f695"
 HDF5 = "f67ccb44-e63f-5c2f-98bd-6dc0ccc4ba2f"