diff --git a/client/Cargo.toml b/client/Cargo.toml
index 28a516de..313bea98 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -31,7 +31,7 @@ fxhash = "0.2.1"
 downcast-rs = "1.1.1"
 quinn = { workspace = true }
 futures-util = "0.3.1"
-rustls = { version = "0.20.6", features = ["dangerous_configuration"] }
+rustls = { version = "0.21.6", features = ["dangerous_configuration"] }
 webpki = "0.22.0"
 hecs = { workspace = true }
 rcgen = { version = "0.11.0", default-features = false }
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 15531c38..674b76b0 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -27,6 +27,6 @@ fxhash = "0.2.1"
 nalgebra = { workspace = true }
 libm = "0.2.6"
 slotmap = "1.0.6"
-rustls = "0.20.6"
+rustls = "0.21.6"
 rustls-pemfile = "1.0.0"
 save = { path = "../save" }