diff --git a/Cargo.lock b/Cargo.lock
index cef33101b5f..189299677cd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1773,7 +1773,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35bd3cf68c183738046838e300353e4716c674dc5e56890de4826801a6622a28"
 dependencies = [
  "futures-io",
- "rustls 0.21.2",
+ "rustls 0.21.7",
 ]
 
 [[package]]
@@ -3014,7 +3014,7 @@ dependencies = [
  "quickcheck",
  "quinn-proto",
  "rand 0.8.5",
- "rustls 0.21.2",
+ "rustls 0.21.7",
  "thiserror",
  "tokio",
 ]
@@ -3195,7 +3195,7 @@ dependencies = [
  "libp2p-yamux",
  "rcgen 0.10.0",
  "ring",
- "rustls 0.21.2",
+ "rustls 0.21.7",
  "thiserror",
  "tokio",
  "webpki 0.22.0",
@@ -4262,7 +4262,7 @@ dependencies = [
  "rand 0.8.5",
  "ring",
  "rustc-hash",
- "rustls 0.21.2",
+ "rustls 0.21.7",
  "slab",
  "thiserror",
  "tinyvec",
@@ -4735,13 +4735,13 @@ dependencies = [
 
 [[package]]
 name = "rustls"
-version = "0.21.2"
+version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e32ca28af694bc1bbf399c33a516dbdf1c90090b8ab23c2bc24f834aa2247f5f"
+checksum = "cd8d6c9f025a446bc4d18ad9632e69aec8f287aa84499ee335599fabd20c3fd8"
 dependencies = [
  "log",
  "ring",
- "rustls-webpki",
+ "rustls-webpki 0.101.4",
  "sct 0.7.0",
 ]
 
@@ -4776,6 +4776,16 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "rustls-webpki"
+version = "0.101.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d93931baf2d282fff8d3a532bbfd7653f734643161b87e3e01e59a04439bf0d"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.12"
@@ -6142,7 +6152,7 @@ version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b03058f88386e5ff5310d9111d53f48b17d732b401aeb83a8d5190f2ac459338"
 dependencies = [
- "rustls-webpki",
+ "rustls-webpki 0.100.1",
 ]
 
 [[package]]
diff --git a/transports/quic/Cargo.toml b/transports/quic/Cargo.toml
index 2655b34e83a..3e052d1d370 100644
--- a/transports/quic/Cargo.toml
+++ b/transports/quic/Cargo.toml
@@ -21,7 +21,7 @@ log = "0.4"
 parking_lot = "0.12.0"
 quinn-proto = { version = "0.10.1", default-features = false, features = ["tls-rustls"] }
 rand = "0.8.5"
-rustls = { version = "0.21.2", default-features = false }
+rustls = { version = "0.21.7", default-features = false }
 thiserror = "1.0.40"
 tokio = { version = "1.28.2", default-features = false, features = ["net", "rt", "time"], optional = true }
 
diff --git a/transports/tls/Cargo.toml b/transports/tls/Cargo.toml
index 731fd7508ef..10dbb505c18 100644
--- a/transports/tls/Cargo.toml
+++ b/transports/tls/Cargo.toml
@@ -22,7 +22,7 @@ yasna = "0.5.2"
 
 # Exposed dependencies. Breaking changes to these are breaking changes to us.
 [dependencies.rustls]
-version = "0.21.2"
+version = "0.21.7"
 default-features = false
 features = ["dangerous_configuration"] # Must enable this to allow for custom verification code.