diff --git a/Cargo.toml b/Cargo.toml
index 97ccb15..3bd6b25 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,14 +15,17 @@ server = []
 
 shared-secret-registration-mac = ["dep:hex", "dep:hmac", "dep:sha1"]
 
-unstable-exhaustive-types = []
-
 [dependencies]
 hex = { version = "0.4.3", optional = true }
 hmac = { version = "0.12.1", optional = true }
-ruma = { version = "0.9.4", features = ["api", "events"] }
+ruma = { version = "0.12.0", features = ["api", "events"] }
 serde = { version = "1.0.118", features = ["derive"] }
 sha1 = { version = "0.10.1", optional = true }
 
 [dev-dependencies]
 serde_json = "1.0.61"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = [
+    'cfg(ruma_unstable_exhaustive_types)', # set all types as exhaustive
+] }
diff --git a/src/serde.rs b/src/serde.rs
index 580ba91..ee360c0 100644
--- a/src/serde.rs
+++ b/src/serde.rs
@@ -8,7 +8,7 @@ where
 {
     struct BoolOrUIntVisitor;
 
-    impl<'de> Visitor<'de> for BoolOrUIntVisitor {
+    impl Visitor<'_> for BoolOrUIntVisitor {
         type Value = bool;
 
         fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {