diff --git a/Cargo.lock b/Cargo.lock
index 3fa6a61a..174bd34f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,19 +17,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
-[[package]]
-name = "ahash"
-version = "0.8.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91429305e9f0a25f6205c5b8e0d2db09e0708a7a6df0f42212bb56c32c8ac97a"
-dependencies = [
- "cfg-if",
- "getrandom",
- "once_cell",
- "version_check",
- "zerocopy 0.7.35",
-]
-
 [[package]]
 name = "aho-corasick"
 version = "1.1.2"
@@ -252,7 +239,7 @@ name = "chat-async"
 version = "0.1.0"
 dependencies = [
  "futures-util",
- "http 1.1.0",
+ "http 1.2.0",
  "tokio",
  "tokio-websockets",
 ]
@@ -629,9 +616,9 @@ dependencies = [
 
 [[package]]
 name = "ego-tree"
-version = "0.9.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c6ba7d4eec39eaa9ab24d44a0e73a7949a1095a8b3f3abb11eddf27dbb56a53"
+checksum = "b2972feb8dffe7bc8c5463b1dacda1b0dfbed3710e50f977d965429692d74cd8"
 
 [[package]]
 name = "either"
@@ -730,7 +717,7 @@ dependencies = [
  "cookie 0.18.1",
  "futures-core",
  "futures-util",
- "http 1.1.0",
+ "http 1.2.0",
  "http-body-util",
  "hyper 1.5.2",
  "hyper-tls",
@@ -1007,7 +994,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "futures-util",
- "http 1.1.0",
+ "http 1.2.0",
  "indexmap",
  "slab",
  "tokio",
@@ -1113,9 +1100,9 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21b9ddb458710bc376481b842f5da65cdf31522de232c1ca8146abce2a358258"
+checksum = "f16ca2af56261c99fba8bac40a10251ce8188205a4c448fbb745a2e4daa76fea"
 dependencies = [
  "bytes",
  "fnv",
@@ -1140,7 +1127,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1cac85db508abc24a2e48553ba12a996e87244a0395ce011e62b37158745d643"
 dependencies = [
  "bytes",
- "http 1.1.0",
+ "http 1.2.0",
 ]
 
 [[package]]
@@ -1151,7 +1138,7 @@ checksum = "0475f8b2ac86659c21b64320d5d653f9efe42acd2a4e560073ec61a155a34f1d"
 dependencies = [
  "bytes",
  "futures-core",
- "http 1.1.0",
+ "http 1.2.0",
  "http-body 1.0.0",
  "pin-project-lite",
 ]
@@ -1208,7 +1195,7 @@ dependencies = [
  "futures-channel",
  "futures-util",
  "h2 0.4.3",
- "http 1.1.0",
+ "http 1.2.0",
  "http-body 1.0.0",
  "httparse",
  "itoa",
@@ -1225,7 +1212,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5ee4be2c948921a1a5320b629c4193916ed787a7f7f293fd3f7f5a6c9de74155"
 dependencies = [
  "futures-util",
- "http 1.1.0",
+ "http 1.2.0",
  "hyper 1.5.2",
  "hyper-util",
  "rustls",
@@ -1260,7 +1247,7 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
- "http 1.1.0",
+ "http 1.2.0",
  "http-body 1.0.0",
  "hyper 1.5.2",
  "pin-project-lite",
@@ -2387,7 +2374,7 @@ dependencies = [
  "futures-core",
  "futures-util",
  "h2 0.4.3",
- "http 1.1.0",
+ "http 1.2.0",
  "http-body 1.0.0",
  "http-body-util",
  "hyper 1.5.2",
@@ -2546,11 +2533,10 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "scraper"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0e749d29b2064585327af5038a5a8eb73aeebad4a3472e83531a436563f7208"
+checksum = "cc3d051b884f40e309de6c149734eab57aa8cc1347992710dc80bcc1c2194c15"
 dependencies = [
- "ahash",
  "cssparser",
  "ego-tree",
  "getopts",
@@ -3044,9 +3030,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.41.1"
+version = "1.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22cfb5bee7a6a52939ca9224d6ac897bb669134078daa8735560897f69de4d33"
+checksum = "5cec9b21b0450273377fc97bd4c33a8acffc8c996c987a7c5b319a0083707551"
 dependencies = [
  "backtrace",
  "bytes",
@@ -3139,7 +3125,7 @@ dependencies = [
  "fastrand",
  "futures-core",
  "futures-sink",
- "http 1.1.0",
+ "http 1.2.0",
  "httparse",
  "sha1_smol",
  "tokio",
@@ -3755,33 +3741,13 @@ dependencies = [
  "synstructure",
 ]
 
-[[package]]
-name = "zerocopy"
-version = "0.7.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
-dependencies = [
- "zerocopy-derive 0.7.35",
-]
-
 [[package]]
 name = "zerocopy"
 version = "0.8.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a367f292d93d4eab890745e75a778da40909cab4d6ff8173693812f79c4a2468"
 dependencies = [
- "zerocopy-derive 0.8.14",
-]
-
-[[package]]
-name = "zerocopy-derive"
-version = "0.7.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.90",
+ "zerocopy-derive",
 ]
 
 [[package]]
@@ -3799,7 +3765,7 @@ dependencies = [
 name = "zerocopy-example"
 version = "0.1.0"
 dependencies = [
- "zerocopy 0.8.14",
+ "zerocopy",
 ]
 
 [[package]]
diff --git a/mdbook-slide-evaluator/Cargo.toml b/mdbook-slide-evaluator/Cargo.toml
index b4a13bec..16f42817 100644
--- a/mdbook-slide-evaluator/Cargo.toml
+++ b/mdbook-slide-evaluator/Cargo.toml
@@ -17,6 +17,6 @@ log = "0.4.22"
 pretty_env_logger = "0.5.0"
 serde = { version = "1.0.217", features = ["derive"] }
 strum = { version = "0.26.3", features = ["derive"] }
-tokio = { version = "1.41.1", features = ["full"] }
+tokio = { version = "1.42.0", features = ["full"] }
 tokio-util = "0.7.13"
 url = "2.5.4"
diff --git a/src/concurrency/async-exercises/chat-async/Cargo.toml b/src/concurrency/async-exercises/chat-async/Cargo.toml
index 82647c8e..4f7a7d1d 100644
--- a/src/concurrency/async-exercises/chat-async/Cargo.toml
+++ b/src/concurrency/async-exercises/chat-async/Cargo.toml
@@ -5,6 +5,6 @@ edition = "2021"
 
 [dependencies]
 futures-util = { version = "0.3.31", features = ["sink"] }
-http = "1.1.0"
-tokio = { version = "1.41.1", features = ["full"] }
+http = "1.2.0"
+tokio = { version = "1.42.0", features = ["full"] }
 tokio-websockets = { version = "0.10.1", features = ["client", "fastrand", "server", "sha1_smol"] }
diff --git a/src/concurrency/sync-exercises/Cargo.toml b/src/concurrency/sync-exercises/Cargo.toml
index 592ff942..a6675b7e 100644
--- a/src/concurrency/sync-exercises/Cargo.toml
+++ b/src/concurrency/sync-exercises/Cargo.toml
@@ -14,7 +14,7 @@ path = "link-checker.rs"
 
 [dependencies]
 reqwest = { version = "0.12.12", features = ["blocking"] }
-scraper = "0.21.0"
+scraper = "0.22.0"
 thiserror = "2.0.9"
 
 [dev-dependencies]