diff --git a/gfx/wr/Cargo.lock b/gfx/wr/Cargo.lock
index 763b80062179..98e9545faaab 100644
--- a/gfx/wr/Cargo.lock
+++ b/gfx/wr/Cargo.lock
@@ -424,18 +424,6 @@ dependencies = [
  "termcolor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "atty 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "humantime 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "euclid"
 version = "0.19.5"
@@ -1445,14 +1433,6 @@ dependencies = [
  "wincolor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "termcolor"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "termion"
 version = "1.5.1"
@@ -1757,14 +1737,6 @@ name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "winapi-util"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
@@ -1778,15 +1750,6 @@ dependencies = [
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "wincolor"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "winit"
 version = "0.16.2"
@@ -1829,7 +1792,7 @@ dependencies = [
  "core-graphics 0.17.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "dwrote 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.19.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "font-loader 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1962,7 +1925,6 @@ dependencies = [
 "checksum dwrote 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c31c624339dab99c223a4b26c2e803b7c248adaca91549ce654c76f39a03f5c8"
 "checksum either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3be565ca5c557d7f59e7cfcf1844f9e3033650c929c6566f511e8005f205c1d0"
 "checksum env_logger 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)" = "0e6e40ebb0e66918a37b38c7acab4e10d299e0463fe2af5d29b9cc86710cfd2a"
-"checksum env_logger 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b61fa891024a945da30a9581546e8cfaf5602c7b3f4c137a2805cf388f92075a"
 "checksum euclid 0.19.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d1a7698bdda3d7444a79d33bdc96e8b518d44ea3ff101d8492a6ca1207b886ea"
 "checksum euclid_macros 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fdcb84c18ea5037a1c5a23039b4ff29403abce2e0d6b1daa11cf0bde2b30be15"
 "checksum expat-sys 2.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c470ccb972f2088549b023db8029ed9da9426f5affbf9b62efff7009ab8ed5b1"
@@ -2081,7 +2043,6 @@ dependencies = [
 "checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
 "checksum tempfile 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "47776f63b85777d984a50ce49d6b9e58826b6a3766a449fc95bc66cd5663c15b"
 "checksum termcolor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "adc4587ead41bf016f11af03e55a624c06568b5a19db4e90fde573d805074f83"
-"checksum termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4096add70612622289f2fdcdbd5086dc81c1e2675e6ae58d6c4f62a16c6d7f2f"
 "checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
 "checksum textwrap 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c0b59b6b4b44d867f1370ef1bd91bfb262bf07bf0ae65c202ea2fbc16153b693"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
@@ -2110,10 +2071,8 @@ dependencies = [
 "checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-"checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 "checksum wincolor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "eeb06499a3a4d44302791052df005d5232b927ed1a9658146d842165c4de7767"
-"checksum wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "561ed901ae465d6185fa7864d63fbd5720d0ef718366c9a4dc83cf6170d7e9ba"
 "checksum winit 0.16.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ec43db5991cc509f5b0c68cb0a0d3614f697c888999990a186a2e895c7f723c0"
 "checksum ws 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "89c48c53bf9dee34411a08993c10b879c36e105d609b46e25673befe3a5c1320"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
diff --git a/gfx/wr/wrench/Cargo.toml b/gfx/wr/wrench/Cargo.toml
index a340e3d90183..68df092eedac 100644
--- a/gfx/wr/wrench/Cargo.toml
+++ b/gfx/wr/wrench/Cargo.toml
@@ -9,7 +9,7 @@ license = "MPL-2.0"
 base64 = "0.10"
 bincode = "1.0"
 byteorder = "1.0"
-env_logger = { version = "0.6", optional = true }
+env_logger = { version = "0.5", optional = true }
 euclid = "0.19"
 gleam = "0.6.2"
 glutin = "0.17"