diff --git a/Cargo.lock b/Cargo.lock
index f0c303e0..5b113bc9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -163,6 +163,12 @@ version = "0.21.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
 
+[[package]]
+name = "base64"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -906,7 +912,7 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06683b93020a07e3dbcf5f8c0f6d40080d725bea7936fc01ad345c01b97dc270"
 dependencies = [
- "base64",
+ "base64 0.21.5",
  "bytes",
  "headers-core",
  "http 0.2.11",
@@ -1896,9 +1902,9 @@ dependencies = [
 
 [[package]]
 name = "pulldown-cmark"
-version = "0.10.0"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dce76ce678ffc8e5675b22aa1405de0b7037e2fdf8913fea40d1926c6fe1e6e7"
+checksum = "5f0530d13d87d1f549b66a3e8d0c688952abe5994e204ed62615baaf25dc029c"
 dependencies = [
  "bitflags 2.4.1",
  "memchr",
@@ -1995,11 +2001,11 @@ checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
 [[package]]
 name = "reqwest"
-version = "0.12.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d66674f2b6fb864665eea7a3c1ac4e3dfacd2fda83cf6f935a612e01b0e3338"
+checksum = "3e6cc1e89e689536eb5aeede61520e874df5a4707df811cd5da4aa5fbb2aae19"
 dependencies = [
- "base64",
+ "base64 0.22.0",
  "bytes",
  "encoding_rs",
  "futures-channel",
@@ -2020,7 +2026,7 @@ dependencies = [
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
- "rustls-pemfile",
+ "rustls-pemfile 2.1.2",
  "serde",
  "serde_json",
  "serde_urlencoded",
@@ -2061,9 +2067,25 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c74cae0a4cf6ccbbf5f359f08efdf8ee7e1dc532573bf0db71968cb56b1448c"
 dependencies = [
- "base64",
+ "base64 0.21.5",
 ]
 
+[[package]]
+name = "rustls-pemfile"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29993a25686778eb88d4189742cd713c9bce943bc54251a33509dc63cbacf73d"
+dependencies = [
+ "base64 0.22.0",
+ "rustls-pki-types",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecd36cc4259e3e4514335c4a138c6b43171a8d61d8f5c9348f9fc7529416f247"
+
 [[package]]
 name = "rustversion"
 version = "1.0.14"
@@ -2587,7 +2609,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "988c6e20955aa5043e0822cb27093ebaabb430a126cda0223824b6d65ea900c1"
 dependencies = [
- "base64",
+ "base64 0.21.5",
  "bytes",
  "fastrand",
  "futures-core",
@@ -2832,7 +2854,7 @@ dependencies = [
  "mime_guess",
  "percent-encoding",
  "pin-project",
- "rustls-pemfile",
+ "rustls-pemfile 1.0.4",
  "scoped-tls",
  "serde",
  "serde_json",
@@ -3101,9 +3123,9 @@ checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
 [[package]]
 name = "winreg"
-version = "0.50.0"
+version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
+checksum = "a277a57398d4bfa075df44f501a17cfdf8542d224f0d36095a2adc7aee4ef0a5"
 dependencies = [
  "cfg-if",
  "windows-sys 0.48.0",
diff --git a/mdbook-exerciser/Cargo.toml b/mdbook-exerciser/Cargo.toml
index cd1df274..9a3d4931 100644
--- a/mdbook-exerciser/Cargo.toml
+++ b/mdbook-exerciser/Cargo.toml
@@ -12,4 +12,4 @@ anyhow = "1.0.81"
 log = "0.4.21"
 mdbook = "0.4.37"
 pretty_env_logger = "0.5.0"
-pulldown-cmark = { version = "0.10.0", default-features = false }
+pulldown-cmark = { version = "0.10.2", default-features = false }
diff --git a/src/exercises/Cargo.toml b/src/exercises/Cargo.toml
index 57a055c7..7586a4ab 100644
--- a/src/exercises/Cargo.toml
+++ b/src/exercises/Cargo.toml
@@ -13,7 +13,7 @@ name = "link-checker"
 path = "concurrency/link-checker.rs"
 
 [dependencies]
-reqwest = { version = "0.12.2", features = ["blocking"] }
+reqwest = { version = "0.12.3", features = ["blocking"] }
 scraper = "0.19.0"
 thiserror = "1.0.58"