diff --git a/blog/2021/deploy_rust_on_heroku/Cargo.lock b/blog/2021/deploy_rust_on_heroku/Cargo.lock
index 190090a..1ae33d3 100644
--- a/blog/2021/deploy_rust_on_heroku/Cargo.lock
+++ b/blog/2021/deploy_rust_on_heroku/Cargo.lock
@@ -104,6 +104,12 @@ dependencies = [
  "crypto-common",
 ]
 
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
 [[package]]
 name = "fastrand"
 version = "1.7.0"
@@ -194,9 +200,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.13"
+version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37a82c6d637fc9515a4694bbf1cb2457b79d81ce52b3108bdeea58b07dd34a57"
+checksum = "bb2c4422095b67ee78da96fbb51a4cc413b3b25883c7717ff7ca1ab31022c9c9"
 dependencies = [
  "bytes",
  "fnv",
@@ -213,9 +219,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.12.1"
+version = "0.14.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db0d4cf898abf0081f964436dc980e96670a0f36863e4b83aaacdb65c9d7ccc3"
+checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
 
 [[package]]
 name = "headers"
@@ -322,11 +328,11 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.9.0"
+version = "2.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c6392766afd7964e2531940894cffe4bd8d7d17dbc3c1c4857040fd4b33bdb3"
+checksum = "7b0b929d511467233429c45a44ac1dcaa21ba0f5ba11e4879e6ed28ddb4f9df4"
 dependencies = [
- "autocfg",
+ "equivalent",
  "hashbrown",
 ]
 
@@ -767,9 +773,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.20.3"
+version = "1.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "664cf6576f16c0ad68184998f3c2d4be9903ede6b291a5b5cfc97d29e0057283"
+checksum = "eb78f30e4b41e98ca4cce5acb51168a033839a7af9e42b380355808e14e98ee0"
 dependencies = [
  "autocfg",
  "bytes",
diff --git a/blog/2021/rust_static_site_generator/Cargo.lock b/blog/2021/rust_static_site_generator/Cargo.lock
index cbd7dac..44ce27c 100644
--- a/blog/2021/rust_static_site_generator/Cargo.lock
+++ b/blog/2021/rust_static_site_generator/Cargo.lock
@@ -712,9 +712,9 @@ checksum = "20518fe4a4c9acf048008599e464deb21beeae3d3578418951a189c235a7a9a8"
 
 [[package]]
 name = "tokio"
-version = "1.20.3"
+version = "1.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "664cf6576f16c0ad68184998f3c2d4be9903ede6b291a5b5cfc97d29e0057283"
+checksum = "eb78f30e4b41e98ca4cce5acb51168a033839a7af9e42b380355808e14e98ee0"
 dependencies = [
  "autocfg",
  "bytes",
diff --git a/blog/2021/rust_worker_pool/Cargo.lock b/blog/2021/rust_worker_pool/Cargo.lock
index 6f849be..88465d8 100644
--- a/blog/2021/rust_worker_pool/Cargo.lock
+++ b/blog/2021/rust_worker_pool/Cargo.lock
@@ -436,9 +436,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.20.3"
+version = "1.20.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "664cf6576f16c0ad68184998f3c2d4be9903ede6b291a5b5cfc97d29e0057283"
+checksum = "eb78f30e4b41e98ca4cce5acb51168a033839a7af9e42b380355808e14e98ee0"
 dependencies = [
  "autocfg",
  "bytes",