diff --git a/Cargo.toml b/Cargo.toml
index 1c6718c9..5439357a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -76,7 +76,7 @@ handlebars = "5.1.0"
 serde_json = "1.0.1"
 
 [build-dependencies]
-vergen = { version = "8", features = ["build", "git", "gitcl"] }
+vergen = { version = "9", features = ["build", "git", "gitcl"] }
 
 [[bench]]
 name = "recursive-snark"