diff --git a/Cargo.lock b/Cargo.lock
index a6f1084..633d41b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -22,22 +22,29 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.30"
+version = "1.2.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "deec109607ca693028562ed836a5f1c4b8bd77755c4e132fc5ce11b0b6211ae7"
+checksum = "90583009037521a116abf44494efecd645ba48b6622457080f080b85544e2215"
 dependencies = [
+ "find-msvc-tools",
  "shlex",
 ]
 
 [[package]]
 name = "cmake"
-version = "0.1.54"
+version = "0.1.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7caa3f9de89ddbe2c607f4101924c5abec803763ae9534e4f4d7d8f84aa81f0"
+checksum = "d49d74c227b6cc9f3c51a2c7c667a05b6453f7f0f952a5f8e4493bb9e731d68e"
 dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "find-msvc-tools"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a3076410a55c90011c298b04d0cfa770b00fa04e1e3c97d3f6c9de105a03844"
+
 [[package]]
 name = "libc"
 version = "0.2.178"