diff --git a/crates/ruma-common/src/identifiers/voip_version_id.rs b/crates/ruma-common/src/identifiers/voip_version_id.rs
index f90efc69..29faca4c 100644
--- a/crates/ruma-common/src/identifiers/voip_version_id.rs
+++ b/crates/ruma-common/src/identifiers/voip_version_id.rs
@@ -78,7 +78,7 @@ impl<'de> Deserialize<'de> for VoipVersionId {
     {
         struct CallVersionVisitor;
 
-        impl<'de> Visitor<'de> for CallVersionVisitor {
+        impl Visitor<'_> for CallVersionVisitor {
             type Value = VoipVersionId;
 
             fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
diff --git a/crates/ruma-common/src/serde/raw.rs b/crates/ruma-common/src/serde/raw.rs
index c8519749..189030f5 100644
--- a/crates/ruma-common/src/serde/raw.rs
+++ b/crates/ruma-common/src/serde/raw.rs
@@ -107,7 +107,7 @@ impl<T> Raw<T> {
     {
         struct FieldVisitor<'b>(&'b str);
 
-        impl<'b, 'de> Visitor<'de> for FieldVisitor<'b> {
+        impl Visitor<'_> for FieldVisitor<'_> {
             type Value = bool;
 
             fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -124,7 +124,7 @@ impl<T> Raw<T> {
 
         struct Field<'b>(&'b str);
 
-        impl<'b, 'de> DeserializeSeed<'de> for Field<'b> {
+        impl<'de> DeserializeSeed<'de> for Field<'_> {
             type Value = bool;
 
             fn deserialize<D>(self, deserializer: D) -> Result<bool, D::Error>
@@ -146,7 +146,7 @@ impl<T> Raw<T> {
             }
         }
 
-        impl<'b, 'de, T> Visitor<'de> for SingleFieldVisitor<'b, T>
+        impl<'de, T> Visitor<'de> for SingleFieldVisitor<'_, T>
         where
             T: Deserialize<'de>,
         {
diff --git a/crates/ruma-common/src/serde/strings.rs b/crates/ruma-common/src/serde/strings.rs
index dcb3cef9..7a8d769e 100644
--- a/crates/ruma-common/src/serde/strings.rs
+++ b/crates/ruma-common/src/serde/strings.rs
@@ -60,7 +60,7 @@ where
 {
     struct F64OrStringVisitor;
 
-    impl<'de> Visitor<'de> for F64OrStringVisitor {
+    impl Visitor<'_> for F64OrStringVisitor {
         type Value = f64;
 
         fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -134,7 +134,7 @@ where
 {
     struct IntOrStringVisitor;
 
-    impl<'de> Visitor<'de> for IntOrStringVisitor {
+    impl Visitor<'_> for IntOrStringVisitor {
         type Value = Int;
 
         fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
diff --git a/crates/ruma-events/src/call/member/member_data.rs b/crates/ruma-events/src/call/member/member_data.rs
index 6804c570..b4691807 100644
--- a/crates/ruma-events/src/call/member/member_data.rs
+++ b/crates/ruma-events/src/call/member/member_data.rs
@@ -31,7 +31,7 @@ pub enum MembershipData<'a> {
     Session(&'a SessionMembershipData),
 }
 
-impl<'a> MembershipData<'a> {
+impl MembershipData<'_> {
     /// The application this RTC membership participates in (the session type, can be `m.call`...)
     pub fn application(&self) -> &Application {
         match self {
diff --git a/crates/ruma-html/src/sanitizer_config.rs b/crates/ruma-html/src/sanitizer_config.rs
index 375ba284..2e57cbf3 100644
--- a/crates/ruma-html/src/sanitizer_config.rs
+++ b/crates/ruma-html/src/sanitizer_config.rs
@@ -454,7 +454,7 @@ pub struct PropertiesNames<'a> {
     pub properties: &'a [&'static str],
 }
 
-impl<'a> PropertiesNames<'a> {
+impl PropertiesNames<'_> {
     fn to_tuple(self) -> (&'static str, HashSet<&'static str>) {
         let set = self.properties.iter().copied().collect();
         (self.parent, set)
@@ -471,7 +471,7 @@ pub struct ElementAttributesReplacement<'a> {
     pub replacements: &'a [NameReplacement],
 }
 
-impl<'a> ElementAttributesReplacement<'a> {
+impl ElementAttributesReplacement<'_> {
     fn to_tuple(self) -> (&'static str, HashMap<&'static str, &'static str>) {
         let map = self.replacements.iter().map(|r| r.to_tuple()).collect();
         (self.element, map)
@@ -490,7 +490,7 @@ pub struct ElementAttributesSchemes<'a> {
     pub attr_schemes: &'a [PropertiesNames<'a>],
 }
 
-impl<'a> ElementAttributesSchemes<'a> {
+impl ElementAttributesSchemes<'_> {
     fn to_tuple(self) -> (&'static str, HashMap<&'static str, HashSet<&'static str>>) {
         let map = self.attr_schemes.iter().map(|s| s.to_tuple()).collect();
         (self.element, map)
diff --git a/crates/ruma-state-res/src/lib.rs b/crates/ruma-state-res/src/lib.rs
index 09898a22..642dbdde 100644
--- a/crates/ruma-state-res/src/lib.rs
+++ b/crates/ruma-state-res/src/lib.rs
@@ -300,7 +300,7 @@ where
         event_id: &'a Id,
     }
 
-    impl<'a, Id> Ord for TieBreaker<'a, Id>
+    impl<Id> Ord for TieBreaker<'_, Id>
     where
         Id: Ord,
     {
@@ -320,7 +320,7 @@ where
         }
     }
 
-    impl<'a, Id> PartialOrd for TieBreaker<'a, Id>
+    impl<Id> PartialOrd for TieBreaker<'_, Id>
     where
         Id: Ord,
     {