diff --git a/Cargo.lock b/Cargo.lock
index 9018d49f3..c7f5cd4a7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -245,10 +245,12 @@ name = "chrono"
 version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "js-sys 0.3.28 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasm-bindgen 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/vm/Cargo.toml b/vm/Cargo.toml
index 33056ca53..7ce98e271 100644
--- a/vm/Cargo.toml
+++ b/vm/Cargo.toml
@@ -44,7 +44,7 @@ regex = "1"
 rustc_version_runtime = "0.1.*"
 statrs = "0.12.0"
 caseless = "0.2.1"
-chrono = "=0.4.9"
+chrono = { version = "=0.4.9", features = ["wasmbind"] }
 unicode-xid = "0.2.0"
 lazy_static = "^1.0.1"
 lexical = "4"