diff --git a/zbus/Cargo.toml b/zbus/Cargo.toml
index d41932fe4..f1337b460 100644
--- a/zbus/Cargo.toml
+++ b/zbus/Cargo.toml
@@ -40,7 +40,7 @@ tokio-vsock = ["dep:tokio-vsock", "tokio"]
 
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
-serde_repr = "0.1.9"
+serde_repr = "0.1.18"
 zvariant = { path = "../zvariant", version = "4.0.0", default-features = false, features = [
   "enumflags2",
 ] }
diff --git a/zvariant/Cargo.toml b/zvariant/Cargo.toml
index 19fce2d6c..844f08496 100644
--- a/zvariant/Cargo.toml
+++ b/zvariant/Cargo.toml
@@ -37,7 +37,7 @@ chrono = { version = "0.4.34", features = [
 
 [dev-dependencies]
 serde_json = "1.0"
-serde_repr = "0.1.9"
+serde_repr = "0.1.18"
 # If you want to avoid compiling glib even when compiling tests or examples, comment out the glib
 # dev-dependency. Dev-dependencies can't be made optional, and hence can't be disabled with a
 # feature so you have to do it manually. Also, don't enable the gvariant default feature.
diff --git a/zvariant_derive/Cargo.toml b/zvariant_derive/Cargo.toml
index e224b39f9..a8973f0aa 100644
--- a/zvariant_derive/Cargo.toml
+++ b/zvariant_derive/Cargo.toml
@@ -27,4 +27,4 @@ zvariant_utils = { path = "../zvariant_utils", version = "=1.1.0" }
 zvariant = { path = "../zvariant", features = ["enumflags2"] }
 enumflags2 = { version = "0.7.9", features = ["serde"] }
 serde = { version = "1.0", features = ["derive"] }
-serde_repr = "0.1.9"
+serde_repr = "0.1.18"