diff --git a/Cargo.lock b/Cargo.lock
index 9e36c90..f495383 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -438,7 +438,7 @@ dependencies = [
  "proc-macro-hack",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
 ]
 
 [[package]]
@@ -572,7 +572,7 @@ dependencies = [
  "markup5ever",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
 ]
 
 [[package]]
@@ -1109,7 +1109,7 @@ checksum = "a490329918e856ed1b083f244e3bfe2d8c4f336407e4ea9e1a9f479ff09049e5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
 ]
 
 [[package]]
@@ -1180,7 +1180,7 @@ dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
  "version_check",
 ]
 
@@ -1209,18 +1209,18 @@ checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.26"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.9"
+version = "1.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
+checksum = "573015e8ab27661678357f27dc26460738fd2b6c86e46f386fde94cb5d913105"
 dependencies = [
  "proc-macro2",
 ]
@@ -1423,7 +1423,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn",
+ "syn 1.0.72",
 ]
 
 [[package]]
@@ -1547,22 +1547,22 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.126"
+version = "1.0.169"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
+checksum = "bd51c3db8f9500d531e6c12dd0fd4ad13d133e9117f5aebac3cdbb8b6d9824b0"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.126"
+version = "1.0.169"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "963a7dbc9895aeac7ac90e74f34a5d5261828f79df35cbed41e10189d3804d43"
+checksum = "27738cfea0d944ab72c3ed01f3d5f23ec4322af8a1431e40ce630e4c01ea74fd"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.24",
 ]
 
 [[package]]
@@ -1694,7 +1694,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
 ]
 
 [[package]]
@@ -1708,6 +1708,17 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36ccaf716a23c35ff908f91c971a86a9a71af5998c1d8f10e828d9f55f68ac00"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.2.0"
@@ -1906,6 +1917,12 @@ dependencies = [
  "matches",
 ]
 
+[[package]]
+name = "unicode-ident"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22049a19f4a68748a168c0fc439f9516686aa045927ff767eca0a85101fb6e73"
+
 [[package]]
 name = "unicode-normalization"
 version = "0.1.17"
@@ -2039,7 +2056,7 @@ dependencies = [
  "log",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
  "wasm-bindgen-shared",
 ]
 
@@ -2073,7 +2090,7 @@ checksum = "d53739ff08c8a68b0fdbcd54c372b8ab800b1449ab3c9d706503bc7dd1621b2c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.72",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
diff --git a/aer_data/Cargo.toml b/aer_data/Cargo.toml
index 606c2a7..7016481 100644
--- a/aer_data/Cargo.toml
+++ b/aer_data/Cargo.toml
@@ -14,7 +14,7 @@ serialize = ["aer_license/serialize", "aer_version/serialize", "serde", "url/ser
 [dependencies]
 aer_license = { path = "../aer_license", default-features = false }
 aer_version = { path = "../aer_version", default-features = false }
-serde = { version = "1.0.126", optional = true }
+serde = { version = "1.0.169", optional = true }
 url = "2.2.2"
 whoami = "1.1.2"
 
diff --git a/aer_license/Cargo.toml b/aer_license/Cargo.toml
index bb5f3b5..194c443 100644
--- a/aer_license/Cargo.toml
+++ b/aer_license/Cargo.toml
@@ -10,7 +10,7 @@ serialize = ["serde", "url/serde"]
 
 [dependencies]
 license = "1.1.10"
-serde = { version = "1.0.126", optional = true }
+serde = { version = "1.0.169", optional = true }
 url = "2.2.2"
 
 [dev-dependencies]
diff --git a/aer_upd/Cargo.toml b/aer_upd/Cargo.toml
index 688bb55..121b379 100644
--- a/aer_upd/Cargo.toml
+++ b/aer_upd/Cargo.toml
@@ -14,7 +14,7 @@ aer_data = { path = "../aer_data" }
 aer_web = { path = "../aer_web" }
 lazy_static = { version = "1.4.0", optional = true }
 log = "0.4.14"
-serde = { version = "1.0.126", optional = true }
+serde = { version = "1.0.169", optional = true }
 serde_json = { version = "1.0.64", optional = true }
 toml = { version = "0.5.8", optional = true }
 
diff --git a/aer_version/Cargo.toml b/aer_version/Cargo.toml
index 2091504..2507e0b 100644
--- a/aer_version/Cargo.toml
+++ b/aer_version/Cargo.toml
@@ -15,7 +15,7 @@ chocolatey = ["chrono", "num"]
 chrono = { version = "0.4.19", optional = true }
 num = { version = "0.4.0", optional = true }
 semver = "0.11.0"
-serde = { version = "1.0.126", optional = true, features = ["derive"] }
+serde = { version = "1.0.169", optional = true, features = ["derive"] }
 
 [dev-dependencies]
 rstest = "0.10.0"