diff --git a/Cargo.lock b/Cargo.lock
index bdfb7cf..50f9a24 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -134,7 +134,7 @@ checksum = "1ee891b04274a59bd38b412188e24b849617b2e45a0fd8d057deb63e7403761b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn",
 ]
 
 [[package]]
@@ -604,9 +604,9 @@ dependencies = [
 
 [[package]]
 name = "nalgebra"
-version = "0.32.5"
+version = "0.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ea4908d4f23254adda3daa60ffef0f1ac7b8c3e9a864cf3cc154b251908a2ef"
+checksum = "3c4b5f057b303842cf3262c27e465f4c303572e7f6b0648f60e16248ac3397f4"
 dependencies = [
  "approx",
  "matrixmultiply",
@@ -620,13 +620,13 @@ dependencies = [
 
 [[package]]
 name = "nalgebra-macros"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91761aed67d03ad966ef783ae962ef9bbaca728d2dd7ceb7939ec110fffad998"
+checksum = "254a5372af8fc138e36684761d3c0cdb758a4410e938babcff1c860ce14ddbfc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn",
 ]
 
 [[package]]
@@ -653,6 +653,16 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2bf50223579dc7cdcfb3bfcacf7069ff68243f8c363f62ffa99cf000a6b9c451"
 
+[[package]]
+name = "num-bigint"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c165a9ab64cf766f73521c0dd2cfdff64f488b8f0b3e621face3462d3db536d7"
+dependencies = [
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-complex"
 version = "0.4.6"
@@ -670,7 +680,7 @@ checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn",
 ]
 
 [[package]]
@@ -688,6 +698,7 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
 dependencies = [
+ "num-bigint",
  "num-integer",
  "num-traits",
 ]
@@ -789,24 +800,26 @@ dependencies = [
 
 [[package]]
 name = "parry2d"
-version = "0.15.1"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41c56bf3b44b08f18a6ed01e5c6bf1a41a12efc7e8b806ce0cf50831c88f9fc8"
+checksum = "81cc304edb964c46f3c0915d07503e72c4bc8505bea0e2d96b6e867ecad2f66e"
 dependencies = [
  "approx",
  "arrayvec",
- "bitflags 1.3.2",
+ "bitflags 2.5.0",
  "downcast-rs",
  "either",
  "log",
  "nalgebra",
  "num-derive",
  "num-traits",
+ "ordered-float",
  "rustc-hash",
  "simba",
  "slab",
  "smallvec 1.13.2",
  "spade",
+ "thiserror",
 ]
 
 [[package]]
@@ -951,14 +964,14 @@ dependencies = [
 
 [[package]]
 name = "rapier2d"
-version = "0.20.0"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b406e79fca8206343d4e362d5bd6b7eb4c366e34c0ffcc3eb6469aabc3705503"
+checksum = "7a9a115cec2cd9533e376e23c87a7869508691a7b38ab078cc8a8e1cd24d9d1b"
 dependencies = [
  "approx",
  "arrayvec",
  "bit-vec",
- "bitflags 1.3.2",
+ "bitflags 2.5.0",
  "crossbeam",
  "downcast-rs",
  "log",
@@ -996,9 +1009,9 @@ checksum = "cbf4a6aa5f6d6888f39e980649f3ad6b666acdce1d78e95b8a2cb076e687ae30"
 
 [[package]]
 name = "rustc-hash"
-version = "1.1.0"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+checksum = "583034fd73374156e66797ed8e5b0d5690409c9226b22d87cb7f19821c05d152"
 
 [[package]]
 name = "safe_arch"
@@ -1029,9 +1042,9 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "simba"
-version = "0.8.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "061507c94fc6ab4ba1c9a0305018408e312e17c041eb63bef8aa726fa33aceae"
+checksum = "b3a386a501cd104797982c15ae17aafe8b9261315b5d07e3ec803f2ea26be0fa"
 dependencies = [
  "approx",
  "num-complex",
@@ -1110,17 +1123,6 @@ dependencies = [
  "smallvec 1.13.2",
 ]
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.66"
@@ -1149,7 +1151,7 @@ checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn",
 ]
 
 [[package]]
@@ -1215,7 +1217,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn",
  "wasm-bindgen-shared",
 ]
 
@@ -1237,7 +1239,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1513,5 +1515,5 @@ checksum = "15e934569e47891f7d9411f1a451d947a60e000ab3bd24fbb970f000387d1b3b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.66",
+ "syn",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 3d45259..501906d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,4 +15,4 @@ egui-macroquad = "0.15"
 macroquad = { version = "0.3.26", default-features = false }
 rand = "0.8.5"
 rand_distr = "0.4.3"
-rapier2d = { version = "0.20.0", features = ["simd-stable"] }
+rapier2d = { version = "0.21.0", features = ["simd-stable"] }