diff --git a/arrow-flight/Cargo.toml b/arrow-flight/Cargo.toml
index 350e49b8a766..4c81fb5f1220 100644
--- a/arrow-flight/Cargo.toml
+++ b/arrow-flight/Cargo.toml
@@ -29,7 +29,7 @@ license = "Apache-2.0"
 [dependencies]
 arrow = { path = "../arrow", version = "9.0.0" }
 base64 = "0.13"
-tonic = "0.6"
+tonic = "0.8"
 bytes = "1"
 prost = "0.9"
 prost-derive = "0.9"
diff --git a/integration-testing/Cargo.toml b/integration-testing/Cargo.toml
index 0196578e0dcb..2fc21234cae7 100644
--- a/integration-testing/Cargo.toml
+++ b/integration-testing/Cargo.toml
@@ -42,5 +42,5 @@ serde = { version = "1.0", features = ["rc"] }
 serde_derive = "1.0"
 serde_json = { version = "1.0", features = ["preserve_order"] }
 tokio = { version = "1.0", features = ["macros", "rt", "rt-multi-thread"] }
-tonic = "0.6"
+tonic = "0.8"
 tracing-subscriber = { version = "0.3.1", optional = true }