diff --git a/Cargo.lock b/Cargo.lock
index f4cfcd1..eed5979 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -27,6 +27,12 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.15"
@@ -229,7 +235,7 @@ dependencies = [
  "addr2line",
  "cfg-if 1.0.0",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.4.3",
  "object",
  "rustc-demangle",
 ]
@@ -684,14 +690,14 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.22"
+version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
+checksum = "b39522e96686d38f4bc984b9198e3a0613264abaebaff2c5c918bfa6b6da09af"
 dependencies = [
  "cfg-if 1.0.0",
  "crc32fast",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.5.1",
 ]
 
 [[package]]
@@ -1216,10 +1222,19 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f2d26ec3309788e423cfbf68ad1800f061638098d76a83681af979dc4eda19d"
 dependencies = [
- "adler",
+ "adler 0.2.3",
  "autocfg",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2b29bd4bc3f33391105ebee3589c19197c4271e3e5a9ec9bfe8127eeff8f082"
+dependencies = [
+ "adler 1.0.2",
+]
+
 [[package]]
 name = "mio"
 version = "0.6.23"