diff --git a/Cargo.lock b/Cargo.lock
index d39ad497a10..e678dd1789d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -424,7 +424,7 @@ checksum = "fdf6721fb0140e4f897002dd086c06f6c27775df19cfe1fccb21181a48fd2c98"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -927,7 +927,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -1204,7 +1204,7 @@ checksum = "83fdaf97f4804dcebfa5862639bc9ce4121e82140bec2a987ac5140294865b5b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -1321,7 +1321,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -1426,7 +1426,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -1685,7 +1685,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -3274,7 +3274,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -4038,7 +4038,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -4264,7 +4264,7 @@ checksum = "4359fd9c9171ec6e8c62926d6faaf553a8dc3f64e1507e76da7911b4f6a04405"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -4434,9 +4434,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.73"
+version = "1.0.76"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dd5e8a1f1029c43224ad5898e50140c2aebb1705f19e67c918ebf5b9e797fe1"
+checksum = "95fc56cda0b5c3325f5fbbd7ff9fda9e02bb00bb3dac51252d2f1bfa1cb8cc8c"
 dependencies = [
  "unicode-ident",
 ]
@@ -4461,7 +4461,7 @@ checksum = "440f724eba9f6996b75d63681b0a92b06947f1457076d503a4d2e2c8f56442b8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -4587,9 +4587,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.34"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22a37c9326af5ed140c86a46655b5278de879853be5573c01df185b6f49a580a"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
 dependencies = [
  "proc-macro2",
 ]
@@ -5006,7 +5006,7 @@ dependencies = [
  "quote",
  "rust-embed-utils",
  "shellexpand",
- "syn 2.0.43",
+ "syn 2.0.48",
  "walkdir",
 ]
 
@@ -5276,29 +5276,29 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.193"
+version = "1.0.195"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25dd9975e68d0cb5aa1120c288333fc98731bd1dd12f561e468ea4728c042b89"
+checksum = "63261df402c67811e9ac6def069e4786148c4563f4b50fd4bf30aa370d626b02"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.193"
+version = "1.0.195"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43576ca501357b9b071ac53cdc7da8ef0cbd9493d8df094cd821777ea6e894d3"
+checksum = "46fe8f8603d81ba86327b23a2e9cdf49e1255fb94a4c5f297f6ee0547178ea2c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.109"
+version = "1.0.111"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb0652c533506ad7a2e353cce269330d6afd8bdfb6d75e0ace5b35aacbd7b9e9"
+checksum = "176e46fa42316f18edd598015a5166857fc835ec732f5215eac6b7bdbf0a84f4"
 dependencies = [
  "indexmap 2.0.0",
  "itoa",
@@ -5324,7 +5324,7 @@ checksum = "8725e1dfadb3a50f7e5ce0b1a540466f6ed3fe7a0fca2ac2b8b831d31316bd00"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -5627,9 +5627,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.43"
+version = "2.0.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee659fb5f3d355364e1f3e5bc10fb82068efbf824a1e9d1c9504244a6469ad53"
+checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -5767,7 +5767,7 @@ checksum = "3dcf4a824cce0aeacd6f38ae6f24234c8e80d68632338ebaa1443b5df9e29e19"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -5869,7 +5869,7 @@ checksum = "5b8a1e28f2deaa14e508979454cb3a223b10b938b45af148bc0986de36f1923b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -6024,7 +6024,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -6381,7 +6381,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
  "wasm-bindgen-shared",
 ]
 
@@ -6415,7 +6415,7 @@ checksum = "f0eb82fcb7930ae6219a7ecfd55b217f5f0893484b7a13022ebb2b2bf20b5283"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -6448,7 +6448,7 @@ checksum = "794645f5408c9a039fd09f4d113cdfb2e7eba5ff1956b07bcf701cf4b394fe89"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
 
 [[package]]
@@ -7031,5 +7031,5 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.43",
+ "syn 2.0.48",
 ]
diff --git a/hole-punching-tests/Cargo.toml b/hole-punching-tests/Cargo.toml
index 8135e17b536..201b493e90a 100644
--- a/hole-punching-tests/Cargo.toml
+++ b/hole-punching-tests/Cargo.toml
@@ -14,5 +14,5 @@ tracing = "0.1.37"
 redis = { version = "0.23.0", default-features = false, features = ["tokio-comp"] }
 tokio = { version = "1.35.1", features = ["full"] }
 serde = { version = "1.0.193", features = ["derive"] }
-serde_json = "1.0.109"
+serde_json = "1.0.111"
 either = "1.9.0"
diff --git a/misc/keygen/Cargo.toml b/misc/keygen/Cargo.toml
index f03c18e99db..c4670f2578a 100644
--- a/misc/keygen/Cargo.toml
+++ b/misc/keygen/Cargo.toml
@@ -16,7 +16,7 @@ release = false
 clap = { version = "4.4.12", features = ["derive"] }
 zeroize = "1"
 serde = { version = "1.0.193", features = ["derive"] }
-serde_json = "1.0.109"
+serde_json = "1.0.111"
 libp2p-core = { workspace = true }
 base64 = "0.21.5"
 libp2p-identity = { workspace = true }
diff --git a/protocols/request-response/Cargo.toml b/protocols/request-response/Cargo.toml
index 3d38cc357a9..67536294696 100644
--- a/protocols/request-response/Cargo.toml
+++ b/protocols/request-response/Cargo.toml
@@ -20,7 +20,7 @@ libp2p-swarm = { workspace = true }
 libp2p-identity = { workspace = true }
 rand = "0.8"
 serde = { version = "1.0", optional = true}
-serde_json = { version = "1.0.109", optional = true }
+serde_json = { version = "1.0.111", optional = true }
 smallvec = "1.11.2"
 tracing = "0.1.37"
 void = "1.0.2"