diff --git a/Cargo.lock b/Cargo.lock
index 8ff408d0..4a332bf8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
@@ -554,24 +556,24 @@ dependencies = [
 
 [[package]]
 name = "protobuf"
-version = "2.20.0"
+version = "2.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86473d5f16580f10b131a0bf0afb68f8e029d1835d33a00f37281b05694e5312"
+checksum = "1b7f4a129bb3754c25a4e04032a90173c68f85168f77118ac4cb4936e7f06f92"
 
 [[package]]
 name = "protobuf-codegen"
-version = "2.20.0"
+version = "2.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8b6ba4581fcd9c3ce3576f25e528467b0d3516e332884c0da6f2084fe59045f"
+checksum = "e5d2fa3a461857508103b914da60dd7b489c1a834967c2e214ecc1496f0c486a"
 dependencies = [
  "protobuf",
 ]
 
 [[package]]
 name = "protobuf-codegen-pure"
-version = "2.20.0"
+version = "2.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0cc5a64733bf127b466ca734a39ad1b123ac37bfe96c5a340fa6f5393dfd964"
+checksum = "b3a2520307dbb0df861ed77603770dc23b0ec15e5048272416d6447de98e862b"
 dependencies = [
  "protobuf",
  "protobuf-codegen",
diff --git a/Cargo.toml b/Cargo.toml
index 1dc5f964..d90f344d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,7 +48,7 @@ anyhow = "1.0"
 goblin = "0.3"
 libc = "0.2"
 lset = "0.1"
-protobuf = "2.18"
+protobuf = "2.22"
 openssl = "0.10"
 
 [build-dependencies]