diff --git a/Cargo.lock b/Cargo.lock
index d47ef8a2cac59..5cc0e39c384d1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1342,7 +1342,7 @@ checksum = "22813a6dc45b335f9bade10bf7271dc477e81113e89eb251a0bc2a8a81c536e1"
 dependencies = [
  "bstr",
  "csv-core",
- "itoa",
+ "itoa 0.4.7",
  "ryu",
  "serde",
 ]
@@ -2675,7 +2675,7 @@ checksum = "7245cd7449cc792608c3c8a9eaf69bd4eabbabf802713748fd739c98b82f0747"
 dependencies = [
  "bytes 1.0.1",
  "fnv",
- "itoa",
+ "itoa 0.4.7",
 ]
 
 [[package]]
@@ -2691,9 +2691,9 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.4.1"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3a87b616e37e93c22fb19bcd386f02f3af5ea98a25670ad0fce773de23c5e68"
+checksum = "9100414882e15fb7feccb4897e5f0ff0ff1ca7d1a86a23208ada4d7a18e6c6c4"
 
 [[package]]
 name = "httpdate"
@@ -2737,9 +2737,9 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "0.14.11"
+version = "0.14.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b61cf2d1aebcf6e6352c97b81dc2244ca29194be1b276f5d8ad5c6330fffb11"
+checksum = "043f0e083e9901b6cc658a77d1eb86f4fc650bbb977a4337dd63192826aa85dd"
 dependencies = [
  "bytes 1.0.1",
  "futures-channel",
@@ -2749,7 +2749,7 @@ dependencies = [
  "http-body",
  "httparse",
  "httpdate",
- "itoa",
+ "itoa 1.0.1",
  "pin-project-lite 0.2.6",
  "socket2 0.4.0",
  "tokio",
@@ -2766,7 +2766,7 @@ checksum = "5f9f7a97316d44c0af9b0301e65010573a853a9fc97046d7331d7f6bc0fd5a64"
 dependencies = [
  "ct-logs",
  "futures-util",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "log 0.4.14",
  "rustls",
  "rustls-native-certs",
@@ -2782,7 +2782,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
 dependencies = [
  "bytes 1.0.1",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "native-tls",
  "tokio",
  "tokio-native-tls",
@@ -2978,6 +2978,12 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
+[[package]]
+name = "itoa"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aab8fc367588b89dcee83ab0fd66b72b50b72fa1904d7095045ace2b0c81c35"
+
 [[package]]
 name = "jobserver"
 version = "0.1.21"
@@ -3004,7 +3010,7 @@ checksum = "d2b99d4207e2a04fb4581746903c2bb7eb376f88de9c699d0f3e10feeac0cd3a"
 dependencies = [
  "derive_more",
  "futures 0.3.16",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "hyper-tls",
  "jsonrpc-core",
  "jsonrpc-pubsub",
@@ -3060,7 +3066,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e1dea6e07251d9ce6a552abfb5d7ad6bc290a4596c8dcc3d795fae2bbdc1f3ff"
 dependencies = [
  "futures 0.3.16",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "jsonrpc-core",
  "jsonrpc-server-utils",
  "log 0.4.14",
@@ -3156,7 +3162,7 @@ dependencies = [
  "beef",
  "futures-channel",
  "futures-util",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "log 0.4.14",
  "serde",
  "serde_json",
@@ -4920,7 +4926,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bafe4179722c2894288ee77a9f044f02811c86af699344c498b0840c698a2465"
 dependencies = [
  "arrayvec 0.4.12",
- "itoa",
+ "itoa 0.4.7",
 ]
 
 [[package]]
@@ -8237,7 +8243,7 @@ dependencies = [
  "futures 0.3.16",
  "futures-timer 3.0.2",
  "hex",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "hyper-rustls",
  "lazy_static",
  "log 0.4.14",
@@ -8842,7 +8848,7 @@ version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f690853975602e1bfe1ccbf50504d67174e3bcf340f23b5ea9992e0587a52d8"
 dependencies = [
- "itoa",
+ "itoa 0.4.7",
  "ryu",
  "serde",
 ]
@@ -10063,7 +10069,7 @@ dependencies = [
  "async-std",
  "derive_more",
  "futures-util",
- "hyper 0.14.11",
+ "hyper 0.14.17",
  "log 0.4.14",
  "prometheus",
  "tokio",
@@ -10901,7 +10907,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f559b464de2e2bdabcac6a210d12e9b5a5973c251e102c44c585c71d51bd78e"
 dependencies = [
  "cfg-if 1.0.0",
- "rand 0.7.3",
+ "rand 0.8.4",
  "static_assertions",
 ]
 
diff --git a/client/offchain/Cargo.toml b/client/offchain/Cargo.toml
index 641a1e55063d0..158dd143cbcf9 100644
--- a/client/offchain/Cargo.toml
+++ b/client/offchain/Cargo.toml
@@ -31,7 +31,7 @@ sp-offchain = { version = "4.0.0-dev", path = "../../primitives/offchain" }
 sp-runtime = { version = "4.0.0-dev", path = "../../primitives/runtime" }
 sc-utils = { version = "4.0.0-dev", path = "../utils" }
 threadpool = "1.7"
-hyper = "0.14.11"
+hyper = "0.14.17"
 hyper-rustls = "0.22.1"
 
 [dev-dependencies]
diff --git a/utils/prometheus/Cargo.toml b/utils/prometheus/Cargo.toml
index 8b647d6282fba..6f37dd8bd9815 100644
--- a/utils/prometheus/Cargo.toml
+++ b/utils/prometheus/Cargo.toml
@@ -19,8 +19,8 @@ futures-util = { version = "0.3.17", default-features = false, features = ["io"]
 derive_more = "0.99"
 async-std = { version = "1.10.0", features = ["unstable"] }
 tokio = "1.10"
-hyper = { version = "0.14.11", default-features = false, features = ["http1", "server", "tcp"] }
+hyper = { version = "0.14.17", default-features = false, features = ["http1", "server", "tcp"] }
 
 [dev-dependencies]
-hyper = { version = "0.14.11", features = ["client"] }
+hyper = { version = "0.14.17", features = ["client"] }
 tokio = { version = "1.10", features = ["rt-multi-thread"] }