diff --git a/rust/rust-by-example/Cargo.lock b/rust/rust-by-example/Cargo.lock
index 78488a0..c0e4858 100644
--- a/rust/rust-by-example/Cargo.lock
+++ b/rust/rust-by-example/Cargo.lock
@@ -4,23 +4,13 @@ version = 3
 
 [[package]]
 name = "aho-corasick"
-version = "0.5.3"
+version = "0.7.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
 dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
-
 [[package]]
 name = "libc"
 version = "0.2.104"
@@ -29,31 +19,26 @@ checksum = "7b2f96d100e1cf1929e7719b7edb3b90ab5298072638fccd77be9ce942ecdfce"
 
 [[package]]
 name = "memchr"
-version = "0.1.11"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
-dependencies = [
- "libc",
-]
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "regex"
-version = "0.1.80"
+version = "1.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
+checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
- "utf8-ranges",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.3.9"
+version = "0.6.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
+checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
 
 [[package]]
 name = "rust-by-example"
@@ -63,25 +48,6 @@ dependencies = [
  "time",
 ]
 
-[[package]]
-name = "thread-id"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
-dependencies = [
- "kernel32-sys",
- "libc",
-]
-
-[[package]]
-name = "thread_local"
-version = "0.2.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
-dependencies = [
- "thread-id",
-]
-
 [[package]]
 name = "time"
 version = "0.1.44"
@@ -90,27 +56,15 @@ checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
  "wasi",
- "winapi 0.3.9",
+ "winapi",
 ]
 
-[[package]]
-name = "utf8-ranges"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
-
 [[package]]
 name = "wasi"
 version = "0.10.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -121,12 +75,6 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu",
 ]
 
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
-
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
diff --git a/rust/rust-by-example/Cargo.toml b/rust/rust-by-example/Cargo.toml
index 7d7f6dd..798a339 100644
--- a/rust/rust-by-example/Cargo.toml
+++ b/rust/rust-by-example/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2018"
 
 [dependencies]
 time = "0.1.12"
-regex = "0.1.41"
\ No newline at end of file
+regex = "1.5.5"
\ No newline at end of file