diff --git a/Cargo.lock b/Cargo.lock
index 8e7b41e..a004bf5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -112,9 +112,9 @@ dependencies = [
 
 [[package]]
 name = "ctrlc"
-version = "3.1.7"
+version = "3.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b57a92e9749e10f25a171adcebfafe72991d45e7ec2dcb853e8f83d9dafaeb08"
+checksum = "232295399409a8b7ae41276757b5a1cc21032848d42bff2352261f958b3ca29a"
 dependencies = [
  "nix",
  "winapi",
@@ -320,13 +320,13 @@ checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
 [[package]]
 name = "nix"
-version = "0.18.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83450fe6a6142ddd95fb064b746083fc4ef1705fe81f64a64e1d4b39f54a1055"
+checksum = "fa9b4819da1bc61c0ea48b63b7bc8604064dd43013e7cc325df098d49cd7c18a"
 dependencies = [
  "bitflags",
  "cc",
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "libc",
 ]