diff --git a/Cargo.lock b/Cargo.lock
index 26e9a5a3..ff080085 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1687,9 +1687,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "3.8.3"
+version = "3.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e73139bc5ec2d45e6c5fd85be5a46949c1c39a4c18e56915f5eb4c12f975e377"
+checksum = "69cecfa94848272156ea67b2b1a53f20fc7bc638c4a46d2f8abde08f05f4b857"
 dependencies = [
  "base64 0.22.1",
  "chrono",
@@ -1705,9 +1705,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with_macros"
-version = "3.8.3"
+version = "3.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b80d3d6b56b64335c0180e5ffde23b3c5e08c14c585b51a15bd0e95393f46703"
+checksum = "a8fee4991ef4f274617a51ad4af30519438dacb2f56ac773b08a1922ff743350"
 dependencies = [
  "darling",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index d62f07fa..73e4fe32 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ name = "pombase"
 path = "src/pombase/lib.rs"
 
 [dependencies]
-serde_with = "3.8"
+serde_with = "3.9"
 serde_derive = "1.0"
 serde_json = "1.0"
 getopts = "*"