diff --git a/Cargo.lock b/Cargo.lock
index 903e135..c173235 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "ab_glyph_rasterizer"
 version = "0.1.4"
@@ -207,19 +209,6 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd650552110e39b7c5058986cf177decd3365841836578ac50a286094eac0be6"
 
-[[package]]
-name = "chrono"
-version = "0.4.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
-dependencies = [
- "libc",
- "num-integer",
- "num-traits",
- "time",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "clap"
 version = "2.33.3"
@@ -474,7 +463,7 @@ checksum = "f9d58633299b24b515ac72a3f869f8b91306a3cec616a602843a383acd6f9e97"
 dependencies = [
  "bstr",
  "csv-core",
- "itoa",
+ "itoa 0.4.7",
  "ryu",
  "serde",
 ]
@@ -923,6 +912,12 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
+[[package]]
+name = "itoa"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
+
 [[package]]
 name = "jni-sys"
 version = "0.3.0"
@@ -968,9 +963,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.88"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03b07a082330a35e43f63177cc01689da34fbffa0105e1246cf0311472cac73a"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "libloading"
@@ -1345,6 +1340,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "num_threads"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "objc"
 version = "0.2.7"
@@ -1689,9 +1693,9 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.124"
+version = "1.0.152"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd761ff957cb2a45fbb9ab3da6512de9de55872866160b23c25f1a841e99d29f"
+checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
 
 [[package]]
 name = "serde_cbor"
@@ -1720,7 +1724,7 @@ version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "799e97dc9fdae36a5c8b8f2cae9ce2ee9fdce2058c57a93e6099d919fd982f79"
 dependencies = [
- "itoa",
+ "itoa 0.4.7",
  "ryu",
  "serde",
 ]
@@ -1755,13 +1759,13 @@ dependencies = [
 
 [[package]]
 name = "simplelog"
-version = "0.9.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bc0ffd69814a9b251d43afcabf96dad1b29f5028378056257be9e3fecc9f720"
+checksum = "acee08041c5de3d5048c8b3f6f13fafb3026b24ba43c6a695a0c76179b844369"
 dependencies = [
- "chrono",
  "log",
  "termcolor",
+ "time",
 ]
 
 [[package]]
@@ -1939,12 +1943,31 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.1.43"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+checksum = "cd0cbfecb4d19b5ea75bb31ad904eb5b9fa13f21079c3b92017ebdf4999a5890"
 dependencies = [
+ "itoa 1.0.5",
  "libc",
- "winapi 0.3.9",
+ "num_threads",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e153e1f1acaef8acc537e68b44906d2db6436e2b35ac2c6b42640fff91f00fd"
+
+[[package]]
+name = "time-macros"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd80a657e71da814b8e5d60d3374fc6d35045062245d80224748ae522dd76f36"
+dependencies = [
+ "time-core",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index d1b8bd7..ece0b9e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ num-traits = "0.2"
 pico-args = "0.4"
 serde = "1.0"
 serde_derive = "1.0"
-simplelog = "0.9"
+simplelog = "0.12"
 
 [dev-dependencies]
 criterion = "0.3"