diff --git a/datafusion/proto/gen/Cargo.toml b/datafusion/proto/gen/Cargo.toml
index ca93706419e4..b6993f6c040b 100644
--- a/datafusion/proto/gen/Cargo.toml
+++ b/datafusion/proto/gen/Cargo.toml
@@ -35,4 +35,4 @@ workspace = true
 [dependencies]
 # Pin these dependencies so that the generated output is deterministic
 pbjson-build = "=0.6.2"
-prost-build = "=0.12.4"
+prost-build = "=0.12.6"