diff --git a/docs/Project.toml b/docs/Project.toml
index 2b7c485e..d913f27f 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -4,4 +4,4 @@ FFTW = "7a1cc6ca-52ef-59f5-83cd-3a7055c09341"
 LinearOperators = "5c8ed15e-5a4c-59e4-a42b-c7e8811fb125"
 
 [compat]
-Documenter = "~0.21"
+Documenter = "~0.24"