diff --git a/Cargo.toml b/Cargo.toml
index dc0b0d3e..6f50ff01 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ once_cell = "1.9.0"
 mini-moka = { version = "0.10", optional = true }
 parking_lot = "0.12.0"
 regex = "1.5.4"
-petgraph = "0.6"
+petgraph = "0.8"
 fixedbitset = "0.4"
 rhai = { version = "1.5.0", features = [
   "sync",