diff --git a/Cargo.lock b/Cargo.lock
index a5a6839..d288321 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -727,7 +727,7 @@ name = "line_drawing"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -795,7 +795,7 @@ dependencies = [
  "glium-glyph 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "mehlon-meshgen 0.2.0-dev",
  "mehlon-server 0.2.0-dev",
- "nalgebra 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nalgebra 0.17.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -809,7 +809,7 @@ version = "0.2.0-dev"
 dependencies = [
  "glium 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "mehlon-server 0.2.0-dev",
- "nalgebra 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nalgebra 0.17.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -823,7 +823,7 @@ dependencies = [
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libsqlite3-sys 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "nalgebra 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nalgebra 0.17.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "noise 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "quinn 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -931,7 +931,7 @@ dependencies = [
 
 [[package]]
 name = "nalgebra"
-version = "0.17.2"
+version = "0.17.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "alga 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2227,7 +2227,7 @@ dependencies = [
 "checksum mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)" = "71646331f2619b1026cc302f87a2b8b648d5c6dd6937846a16cc8ce0f347f432"
 "checksum mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "966257a94e196b11bb43aca423754d87429960a768de9414f3691d6957abf125"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
-"checksum nalgebra 0.17.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f76a29833cbba252d6799bcfd8e603610a2165a18b62c7f4307495d851c3d337"
+"checksum nalgebra 0.17.3 (registry+https://github.com/rust-lang/crates.io-index)" = "be539bb5e751c248d25c21c850b69105809306f367c35bf1daa8724f0cb786df"
 "checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
 "checksum nix 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "921f61dc817b379d0834e45d5ec45beaacfae97082090a49c2cf30dcbc30206f"
 "checksum nix 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46f0f3210768d796e8fa79ec70ee6af172dacbe7147f5e69be5240a47778302b"