diff --git a/Cargo.toml b/Cargo.toml
index 7f12e00..4af8245 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ required-features = ["build-binary"]
 
 [dependencies]
 base64 = "0.13.0"
-peg = "0.6.3"
+peg = "0.8.0"
 proptest = "0.10.1"
 rand = "0.7.3"  # intentionally not upgrading to avoid ./target/... path collision warning
 serde = { version = "1.0.118", features = ["derive"] }