diff --git a/Cargo.lock b/Cargo.lock
index 6ccc8b96..64cf0fef 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.43"
@@ -26,12 +35,6 @@ version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
-[[package]]
-name = "bytes"
-version = "0.5.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
-
 [[package]]
 name = "bytes"
 version = "1.1.0"
@@ -72,13 +75,13 @@ name = "criu-image-streamer"
 version = "1.0.0"
 dependencies = [
  "anyhow",
- "bytes 1.1.0",
+ "bytes",
  "crossbeam-utils",
  "lazy_static",
  "libc",
  "nix",
  "procinfo",
- "prost 0.9.0",
+ "prost",
  "prost-build",
  "serde",
  "serde_json",
@@ -105,9 +108,9 @@ checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
 name = "fixedbitset"
-version = "0.2.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37ab347416e802de484e4d03c7316c48f1ecb56574dfd4a46a80f173ce1de04d"
+checksum = "398ea4fabe40b9b0d885340a2a991a44c8a645624075ad966d21f88688e2b69e"
 
 [[package]]
 name = "getrandom"
@@ -145,15 +148,6 @@ dependencies = [
  "hashbrown",
 ]
 
-[[package]]
-name = "itertools"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f56a2d0bc861f9165be4eb3442afd3c236d8a98afd426f65d92324ae1091a484"
-dependencies = [
- "either",
-]
-
 [[package]]
 name = "itertools"
 version = "0.10.1"
@@ -190,6 +184,12 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "memchr"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+
 [[package]]
 name = "multimap"
 version = "0.8.3"
@@ -217,9 +217,9 @@ checksum = "cf51a729ecf40266a2368ad335a5fdde43471f545a967109cd62146ecf8b66ff"
 
 [[package]]
 name = "petgraph"
-version = "0.5.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "467d164a6de56270bd7c4d070df81d07beace25012d5103ced4e9ff08d6afdb7"
+checksum = "4a13a2fa9d0b63e5f22328828741e523766fff0ee9e779316902290dff3f824f"
 dependencies = [
  "fixedbitset",
  "indexmap",
@@ -276,57 +276,36 @@ dependencies = [
  "rustc_version",
 ]
 
-[[package]]
-name = "prost"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce49aefe0a6144a45de32927c77bd2859a5f7677b55f220ae5b744e87389c212"
-dependencies = [
- "bytes 0.5.6",
- "prost-derive 0.6.1",
-]
-
 [[package]]
 name = "prost"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "444879275cb4fd84958b1a1d5420d15e6fcf7c235fe47f053c9c2a80aceb6001"
 dependencies = [
- "bytes 1.1.0",
- "prost-derive 0.9.0",
+ "bytes",
+ "prost-derive",
 ]
 
 [[package]]
 name = "prost-build"
-version = "0.6.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02b10678c913ecbd69350e8535c3aef91a8676c0773fc1d7b95cdd196d7f2f26"
+checksum = "62941722fb675d463659e49c4f3fe1fe792ff24fe5bbaa9c08cd3b98a1c354f5"
 dependencies = [
- "bytes 0.5.6",
+ "bytes",
  "heck",
- "itertools 0.8.2",
+ "itertools",
+ "lazy_static",
  "log",
  "multimap",
  "petgraph",
- "prost 0.6.1",
+ "prost",
  "prost-types",
+ "regex",
  "tempfile",
  "which",
 ]
 
-[[package]]
-name = "prost-derive"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "537aa19b95acde10a12fec4301466386f757403de4cd4e5b4fa78fb5ecb18f72"
-dependencies = [
- "anyhow",
- "itertools 0.8.2",
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "prost-derive"
 version = "0.9.0"
@@ -334,7 +313,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f9cc1a3263e07e0bf68e96268f37665207b49560d98739662cdfaae215c720fe"
 dependencies = [
  "anyhow",
- "itertools 0.10.1",
+ "itertools",
  "proc-macro2",
  "quote",
  "syn",
@@ -342,12 +321,12 @@ dependencies = [
 
 [[package]]
 name = "prost-types"
-version = "0.6.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1834f67c0697c001304b75be76f67add9c89742eda3a085ad8ee0bb38c3417aa"
+checksum = "534b7a0e836e3c482d2693070f982e39e7611da9695d4d1f5a4b186b51faef0a"
 dependencies = [
- "bytes 0.5.6",
- "prost 0.6.1",
+ "bytes",
+ "prost",
 ]
 
 [[package]]
@@ -408,6 +387,23 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.3"
@@ -580,10 +576,12 @@ checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
 [[package]]
 name = "which"
-version = "3.1.1"
+version = "4.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d011071ae14a2f6671d0b74080ae0cd8ebf3a6f8c9589a2cd45f23126fe29724"
+checksum = "ea187a8ef279bc014ec368c27a920da2024d2a711109bfbe3440585d5cf27ad9"
 dependencies = [
+ "either",
+ "lazy_static",
  "libc",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index b122bc4f..bb5dcaba 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 
 [build-dependencies]
-prost-build = "0.6" # to generate protobuf wrappers
+prost-build = "0.9" # to generate protobuf wrappers
 
 [dev-dependencies]
 procinfo = "0.4" # to measure memory usage