diff --git a/Cargo.lock b/Cargo.lock
index d78f552306..5785db9d61 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4776,9 +4776,9 @@ dependencies = [
 
 [[package]]
 name = "v8"
-version = "0.39.0"
+version = "0.40.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "540bde9c1b5c4760c9402428bc6c75b6ad07e10fd7e6e47bcff9b4ddaa5ef55e"
+checksum = "5b137f2f34fd5fa5a190e78cc3dfacab8abe26f10ef29bb33f291adede5aede7"
 dependencies = [
  "bitflags",
  "fslock",
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 605cb9b086..ba079edc61 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -25,7 +25,7 @@ serde = { version = "1.0.129", features = ["derive"] }
 serde_json = { version = "1.0.66", features = ["preserve_order"] }
 serde_v8 = { version = "0.29.0", path = "../serde_v8" }
 url = { version = "2.2.2", features = ["serde"] }
-v8 = "0.39.0"
+v8 = "0.40.0"
 
 [[example]]
 name = "http_bench_json_ops"
diff --git a/serde_v8/Cargo.toml b/serde_v8/Cargo.toml
index ee967df23d..72ab46cbde 100644
--- a/serde_v8/Cargo.toml
+++ b/serde_v8/Cargo.toml
@@ -12,7 +12,7 @@ description = "Rust to V8 serialization and deserialization"
 [dependencies]
 serde = { version = "1.0.130", features = ["derive"] }
 serde_bytes = "0.11"
-v8 = "0.39.0"
+v8 = "0.40.0"
 
 [dev-dependencies]
 bencher = "0.1"