diff --git a/pbjson-build/Cargo.toml b/pbjson-build/Cargo.toml
index bcf4767..c88ef17 100644
--- a/pbjson-build/Cargo.toml
+++ b/pbjson-build/Cargo.toml
@@ -13,7 +13,7 @@ repository = "https://github.com/influxdata/pbjson"
 heck = "0.5"
 prost = "0.14"
 prost-types = "0.14"
-itertools = "0.13"
+itertools = "0.14"
 
 [dev-dependencies]
 tempfile = "3.1"