diff --git a/Cargo.lock b/Cargo.lock
index a00cdcf021e..e91391a515a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2370,9 +2370,9 @@ checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
 [[package]]
 name = "js-sys"
-version = "0.3.65"
+version = "0.3.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54c0c35952f67de54bb584e9fd912b3023117cbafc0a77d8f3dee1fb5f572fe8"
+checksum = "cee9c64da59eae3b50095c18d3e74f8b73c0b86d2792824ff01bbce68ba229ca"
 dependencies = [
  "wasm-bindgen",
 ]
diff --git a/examples/browser-webrtc/Cargo.toml b/examples/browser-webrtc/Cargo.toml
index 9f69274f241..2607d0c1056 100644
--- a/examples/browser-webrtc/Cargo.toml
+++ b/examples/browser-webrtc/Cargo.toml
@@ -34,7 +34,7 @@ tower-http = { version = "0.4.0", features = ["cors"] }
 mime_guess = "2.0.4"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-js-sys = "0.3.65"
+js-sys = "0.3.66"
 libp2p = { path = "../../libp2p", features = [ "ed25519", "macros", "ping", "wasm-bindgen"] }
 libp2p-webrtc-websys = { workspace = true }
 wasm-bindgen = "0.2.89"
diff --git a/transports/websocket-websys/Cargo.toml b/transports/websocket-websys/Cargo.toml
index 80fbe28f25b..b0493533e26 100644
--- a/transports/websocket-websys/Cargo.toml
+++ b/transports/websocket-websys/Cargo.toml
@@ -13,7 +13,7 @@ categories = ["network-programming", "asynchronous"]
 [dependencies]
 bytes = "1.4.0"
 futures = "0.3.29"
-js-sys = "0.3.65"
+js-sys = "0.3.66"
 libp2p-core = { workspace = true }
 tracing = "0.1.37"
 parking_lot = "0.12.1"
diff --git a/transports/webtransport-websys/Cargo.toml b/transports/webtransport-websys/Cargo.toml
index 1ca98209e78..d21730e42c4 100644
--- a/transports/webtransport-websys/Cargo.toml
+++ b/transports/webtransport-websys/Cargo.toml
@@ -15,7 +15,7 @@ categories = ["network-programming", "asynchronous"]
 
 [dependencies]
 futures = "0.3.29"
-js-sys = "0.3.65"
+js-sys = "0.3.66"
 libp2p-core = { workspace = true }
 libp2p-identity = { workspace = true }
 libp2p-noise = { workspace = true }