diff --git a/Project.toml b/Project.toml
index f0d641b..ee67c6f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,7 +15,7 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
 Aqua = "0.6"
-Documenter = "0.27"
+Documenter = "0.27, 1.19"
 FillArrays = "0.13, 1.15"
 Graphs = "1.7"
 HiGHS = "1"