diff --git a/C/CausalInference/Versions.toml b/C/CausalInference/Versions.toml
index 53d905c8f1562c9..da7243546875af2 100644
--- a/C/CausalInference/Versions.toml
+++ b/C/CausalInference/Versions.toml
@@ -36,3 +36,6 @@ git-tree-sha1 = "c7df502c81c5f655f171de14c8f8b5e659c327f5"
 
 ["0.9.0"]
 git-tree-sha1 = "bdd2363091e299ac48b076db13936e72527f5a5d"
+
+["0.9.1"]
+git-tree-sha1 = "10456965a6669abf46c60b8b932c9c2bf9d402db"
diff --git a/C/CausalInference/WeakCompat.toml b/C/CausalInference/WeakCompat.toml
new file mode 100644
index 000000000000000..b5299db433d355e
--- /dev/null
+++ b/C/CausalInference/WeakCompat.toml
@@ -0,0 +1,4 @@
+["0.9.1-0"]
+GraphRecipes = "0.5"
+Plots = "1"
+TikzGraphs = "1.3.0-1"
diff --git a/C/CausalInference/WeakDeps.toml b/C/CausalInference/WeakDeps.toml
new file mode 100644
index 000000000000000..0c0c4c6b7784ccc
--- /dev/null
+++ b/C/CausalInference/WeakDeps.toml
@@ -0,0 +1,4 @@
+["0.9.1-0"]
+GraphRecipes = "bd48cda9-67a9-57be-86fa-5b3c104eda73"
+Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
+TikzGraphs = "b4f28e30-c73f-5eaf-a395-8a9db949a742"