diff --git a/docs/Project.toml b/docs/Project.toml
index cd40d4a03..e497372f7 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -40,7 +40,7 @@ CTDirect = "1"
 CTFlows = "0.18"
 CTLie = "0.2"
 CTModels = "0.19"
-CTParser = "0.9"
+CTParser = "0.9, 0.8"
 CTSolvers = "0.5"
 CUDA = "6"
 CairoMakie = "0.15"