diff --git a/Cargo.lock b/Cargo.lock
index a6a925ec1..da7ddaace 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -233,7 +233,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "chrono"
-version = "0.4.16"
+version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "js-sys 0.3.45 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2273,7 +2273,7 @@ version = "0.1.0"
 dependencies = [
  "approx 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitstream-io 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "downcast-rs 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "enumset 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2415,7 +2415,7 @@ name = "ruffle_web"
 version = "0.1.0"
 dependencies = [
  "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "console_error_panic_hook 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "console_log 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3370,7 +3370,7 @@ dependencies = [
 "checksum cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)" = "c3d87b23d6a92cd03af510a5ade527033f6aa6fa92161e2d5863a907d4c5e31d"
 "checksum cexpr 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f4aedb84272dbe89af497cf81375129abda4fc0a9e7c5d317498c15cc30c0d27"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
-"checksum chrono 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)" = "9942f5f46d88ae2926edcd93a8a5b24151133cf6dc4e5f4c3fadb1c532ac8041"
+"checksum chrono 0.4.18 (registry+https://github.com/rust-lang/crates.io-index)" = "d021fddb7bd3e734370acfa4a83f34095571d8570c039f1420d77540f68d5772"
 "checksum clang-sys 0.29.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fe6837df1d5cba2397b835c8530f51723267e16abbf83892e9e5af4f0e5dd10a"
 "checksum clap 3.0.0-beta.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4bd1061998a501ee7d4b6d449020df3266ca3124b941ec56cf2005c3779ca142"
 "checksum clap_derive 3.0.0-beta.2 (registry+https://github.com/rust-lang/crates.io-index)" = "370f715b81112975b1b69db93e0b56ea4cd4e5002ac43b2da8474106a54096a1"