diff --git a/Cargo.lock b/Cargo.lock
index 7887f238..fbae8124 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -222,15 +222,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "cloudabi"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4344512281c643ae7638bbabc3af17a11307803ec8f0fcad9fae512a8bf36467"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "cocoa"
 version = "0.23.0"
@@ -847,6 +838,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
 dependencies = [
  "cfg-if 1.0.0",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
 ]
 
 [[package]]
@@ -1290,12 +1284,11 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c361aa727dd08437f2f1447be8b59a33b0edd15e0fcee698f935613d9efbca9b"
+checksum = "d7c6d9b8427445284a09c55be860a15855ab580a417ccad9da88f5a06787ced0"
 dependencies = [
- "cfg-if 0.1.10",
- "cloudabi",
+ "cfg-if 1.0.0",
  "instant",
  "libc",
  "redox_syscall",
diff --git a/egui/Cargo.toml b/egui/Cargo.toml
index 2843227e..4abefbc2 100644
--- a/egui/Cargo.toml
+++ b/egui/Cargo.toml
@@ -20,7 +20,7 @@ include = [
 
 [dependencies]
 ahash = { version = "0.6", features = ["std"], default-features = false }
-parking_lot = "0.11"
+parking_lot = "0.11" # Using parking_lot over std::sync::Mutex gives 50% speedups in some real-world scenarios
 rusttype = "0.9"
 serde = { version = "1", features = ["derive"], optional = true }
 serde_json = { version = "1", optional = true }
diff --git a/egui_web/Cargo.toml b/egui_web/Cargo.toml
index 1bf02709..9269204d 100644
--- a/egui_web/Cargo.toml
+++ b/egui_web/Cargo.toml
@@ -18,7 +18,7 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 egui = { version = "0.5.0", path = "../egui", features = ["serde"] }
 js-sys = "0.3"
-parking_lot = "0.11"
+parking_lot = { version = "0.11", features = ["wasm-bindgen"] }
 serde = "1"
 serde_json = "1"
 wasm-bindgen = "0.2"