diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 635b5d6..cfeafaa 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -35,10 +35,9 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - name: Install toolchain
-      uses: actions-rs/toolchain@v1
+      uses: dtolnay/rust-toolchain@master
       with:
         toolchain: ${{ matrix.version }}
-        override: true
         components: rustfmt, clippy
     - name: Build
       run: cargo build --verbose
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index fa08a10..bd8dd9f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -8,12 +8,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           components: rustfmt
           toolchain: stable
-          profile: minimal
-          override: true
       - uses: actions-rs/cargo@v1
         with:
           command: fmt
@@ -31,12 +29,10 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@master
         with:
           components: clippy
           toolchain: stable
-          profile: minimal
-          override: true
       - uses: actions-rs/cargo@v1
         with:
           command: clippy
diff --git a/examples/more/src/org_example_more.rs b/examples/more/src/org_example_more.rs
index 87adc4f..f8641a6 100644
--- a/examples/more/src/org_example_more.rs
+++ b/examples/more/src/org_example_more.rs
@@ -132,7 +132,7 @@ pub trait VarlinkCallError: varlink::CallTrait {
         ))
     }
 }
-impl<'a> VarlinkCallError for varlink::Call<'a> {}
+impl VarlinkCallError for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct r#State {
     pub r#start: Option<bool>,
@@ -158,7 +158,7 @@ pub trait Call_Ping: VarlinkCallError {
         self.reply_struct(Ping_Reply { r#pong }.into())
     }
 }
-impl<'a> Call_Ping for varlink::Call<'a> {}
+impl Call_Ping for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct StopServing_Reply {}
 impl varlink::VarlinkReply for StopServing_Reply {}
@@ -170,7 +170,7 @@ pub trait Call_StopServing: VarlinkCallError {
         self.reply_struct(varlink::Reply::parameters(None))
     }
 }
-impl<'a> Call_StopServing for varlink::Call<'a> {}
+impl Call_StopServing for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct TestMore_Reply {
     pub r#state: State,
@@ -186,7 +186,7 @@ pub trait Call_TestMore: VarlinkCallError {
         self.reply_struct(TestMore_Reply { r#state }.into())
     }
 }
-impl<'a> Call_TestMore for varlink::Call<'a> {}
+impl Call_TestMore for varlink::Call<'_> {}
 #[allow(dead_code)]
 pub trait VarlinkInterface {
     fn ping(&self, call: &mut dyn Call_Ping, r#ping: String) -> varlink::Result<()>;
diff --git a/examples/ping/src/org_example_ping.rs b/examples/ping/src/org_example_ping.rs
index 2320ec8..6266578 100644
--- a/examples/ping/src/org_example_ping.rs
+++ b/examples/ping/src/org_example_ping.rs
@@ -132,7 +132,7 @@ pub trait VarlinkCallError: varlink::CallTrait {
         ))
     }
 }
-impl<'a> VarlinkCallError for varlink::Call<'a> {}
+impl VarlinkCallError for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct PingError_Args {
     pub r#parameter: i64,
@@ -152,7 +152,7 @@ pub trait Call_Ping: VarlinkCallError {
         self.reply_struct(Ping_Reply { r#pong }.into())
     }
 }
-impl<'a> Call_Ping for varlink::Call<'a> {}
+impl Call_Ping for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct Upgrade_Reply {}
 impl varlink::VarlinkReply for Upgrade_Reply {}
@@ -164,7 +164,7 @@ pub trait Call_Upgrade: VarlinkCallError {
         self.reply_struct(varlink::Reply::parameters(None))
     }
 }
-impl<'a> Call_Upgrade for varlink::Call<'a> {}
+impl Call_Upgrade for varlink::Call<'_> {}
 #[allow(dead_code)]
 pub trait VarlinkInterface {
     fn ping(&self, call: &mut dyn Call_Ping, r#ping: String) -> varlink::Result<()>;
diff --git a/varlink/src/lib.rs b/varlink/src/lib.rs
index 7661005..9508b4a 100644
--- a/varlink/src/lib.rs
+++ b/varlink/src/lib.rs
@@ -703,7 +703,7 @@ pub trait CallTrait {
     }
 }
 
-impl<'a> CallTrait for Call<'a> {
+impl CallTrait for Call<'_> {
     fn reply_struct(&mut self, mut reply: Reply) -> Result<()> {
         if self.continues && (!self.wants_more()) {
             return Err(context!(ErrorKind::CallContinuesMismatch));
@@ -1512,6 +1512,6 @@ impl ConnectionHandler for VarlinkService {
             }
         }
 
-        return Ok((bufreader.buffer().to_vec(), upgraded_iface));
+        Ok((bufreader.buffer().to_vec(), upgraded_iface))
     }
 }
diff --git a/varlink_generator/src/lib.rs b/varlink_generator/src/lib.rs
index bd4ef73..78ed48d 100644
--- a/varlink_generator/src/lib.rs
+++ b/varlink_generator/src/lib.rs
@@ -404,7 +404,7 @@ fn varlink_to_rust(idl: &IDL, options: &GeneratorOptions, tosource: bool) -> Res
         }
 
         ts.extend(quote!(
-            impl<'a> #call_name for varlink::Call<'a> {}
+            impl #call_name for varlink::Call<'_> {}
         ));
 
         // #server_method_decls
@@ -794,7 +794,7 @@ fn generate_error_code(
         ));
     }
     ts.extend(quote!(
-        impl<'a> VarlinkCallError for varlink::Call<'a> {}
+        impl VarlinkCallError for varlink::Call<'_> {}
     ));
 }
 
diff --git a/varlink_generator/tests/org.example.complex.rs_out b/varlink_generator/tests/org.example.complex.rs_out
index 82be71d..339c314 100644
--- a/varlink_generator/tests/org.example.complex.rs_out
+++ b/varlink_generator/tests/org.example.complex.rs_out
@@ -173,7 +173,7 @@ pub trait VarlinkCallError: varlink::CallTrait {
         ))
     }
 }
-impl<'a> VarlinkCallError for varlink::Call<'a> {}
+impl VarlinkCallError for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub enum r#Enum {
     r#enum,
@@ -263,7 +263,7 @@ pub trait Call_Bar: VarlinkCallError {
         self.reply_struct(varlink::Reply::parameters(None))
     }
 }
-impl<'a> Call_Bar for varlink::Call<'a> {}
+impl Call_Bar for varlink::Call<'_> {}
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct r#Foo_Args_enum {
     pub r#b: bool,
@@ -305,7 +305,7 @@ pub trait Call_Foo: VarlinkCallError {
         )
     }
 }
-impl<'a> Call_Foo for varlink::Call<'a> {}
+impl Call_Foo for varlink::Call<'_> {}
 #[allow(dead_code)]
 pub trait VarlinkInterface {
     fn bar(&self, call: &mut dyn Call_Bar) -> varlink::Result<()>;
diff --git a/varlink_parser/src/format.rs b/varlink_parser/src/format.rs
index 99f12f8..c77b466 100644
--- a/varlink_parser/src/format.rs
+++ b/varlink_parser/src/format.rs
@@ -13,7 +13,7 @@ pub trait FormatColored {
     fn get_multiline_colored(&self, indent: usize, max: usize) -> String;
 }
 
-impl<'a> Format for VTypeExt<'a> {
+impl Format for VTypeExt<'_> {
     fn get_oneline(&self) -> String {
         match *self {
             VTypeExt::Plain(VType::Bool) => "bool".into(),
@@ -46,7 +46,7 @@ impl<'a> Format for VTypeExt<'a> {
     }
 }
 
-impl<'a> FormatColored for VTypeExt<'a> {
+impl FormatColored for VTypeExt<'_> {
     fn get_oneline_colored(&self) -> String {
         match *self {
             VTypeExt::Plain(VType::Bool) => "bool".cyan().to_string(),
@@ -83,13 +83,13 @@ impl<'a> FormatColored for VTypeExt<'a> {
     }
 }
 
-impl<'a> fmt::Display for VTypeExt<'a> {
+impl fmt::Display for VTypeExt<'_> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.write_str(&self.get_oneline())
     }
 }
 
-impl<'a> Format for VStructOrEnum<'a> {
+impl Format for VStructOrEnum<'_> {
     fn get_oneline(&self) -> String {
         match *self {
             VStructOrEnum::VStruct(ref v) => v.get_oneline(),
@@ -105,7 +105,7 @@ impl<'a> Format for VStructOrEnum<'a> {
     }
 }
 
-impl<'a> FormatColored for VStructOrEnum<'a> {
+impl FormatColored for VStructOrEnum<'_> {
     fn get_oneline_colored(&self) -> String {
         match *self {
             VStructOrEnum::VStruct(ref v) => v.get_oneline_colored(),
@@ -121,13 +121,13 @@ impl<'a> FormatColored for VStructOrEnum<'a> {
     }
 }
 
-impl<'a> fmt::Display for VStructOrEnum<'a> {
+impl fmt::Display for VStructOrEnum<'_> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.write_str(&self.get_oneline())
     }
 }
 
-impl<'a> Format for Argument<'a> {
+impl Format for Argument<'_> {
     fn get_oneline(&self) -> String {
         format!("{}: {}", self.name, self.vtype)
     }
@@ -137,7 +137,7 @@ impl<'a> Format for Argument<'a> {
     }
 }
 
-impl<'a> FormatColored for Argument<'a> {
+impl FormatColored for Argument<'_> {
     fn get_oneline_colored(&self) -> String {
         format!("{}: {}", self.name, self.vtype.get_oneline_colored())
     }
@@ -151,13 +151,13 @@ impl<'a> FormatColored for Argument<'a> {
     }
 }
 
-impl<'a> fmt::Display for Argument<'a> {
+impl fmt::Display for Argument<'_> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.write_str(&self.get_oneline())
     }
 }
 
-impl<'a> fmt::Display for VStruct<'a> {
+impl fmt::Display for VStruct<'_> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "(")?;
         let mut iter = self.elts.iter();
@@ -171,7 +171,7 @@ impl<'a> fmt::Display for VStruct<'a> {
     }
 }
 
-impl<'a> Format for VStruct<'a> {
+impl Format for VStruct<'_> {
     fn get_oneline(&self) -> String {
         let mut f = String::new();
 
@@ -224,7 +224,7 @@ impl<'a> Format for VStruct<'a> {
     }
 }
 
-impl<'a> FormatColored for VStruct<'a> {
+impl FormatColored for VStruct<'_> {
     fn get_oneline_colored(&self) -> String {
         let mut f = String::new();
 
@@ -287,13 +287,13 @@ impl<'a> FormatColored for VStruct<'a> {
     }
 }
 
-impl<'a> fmt::Display for VEnum<'a> {
+impl fmt::Display for VEnum<'_> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.write_str(&self.get_oneline())
     }
 }
 
-impl<'a> Format for VEnum<'a> {
+impl Format for VEnum<'_> {
     fn get_oneline(&self) -> String {
         let mut f = String::new();
 
@@ -325,7 +325,7 @@ impl<'a> Format for VEnum<'a> {
     }
 }
 
-impl<'a> FormatColored for VEnum<'a> {
+impl FormatColored for VEnum<'_> {
     fn get_oneline_colored(&self) -> String {
         self.get_oneline()
     }
@@ -335,13 +335,13 @@ impl<'a> FormatColored for VEnum<'a> {
     }
 }
 
-impl<'a> fmt::Display for IDL<'a> {
+impl fmt::Display for IDL<'_> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.write_str(&self.get_multiline(0, 80))
     }
 }
 
-impl<'a> Format for IDL<'a> {
+impl Format for IDL<'_> {
     fn get_oneline(&self) -> String {
         let mut f = String::new();
 
@@ -542,7 +542,7 @@ impl<'a> Format for IDL<'a> {
     }
 }
 
-impl<'a> FormatColored for IDL<'a> {
+impl FormatColored for IDL<'_> {
     fn get_oneline_colored(&self) -> String {
         let mut f = String::new();
 
diff --git a/varlink_stdinterfaces/src/org_varlink_service.rs b/varlink_stdinterfaces/src/org_varlink_service.rs
index 3371bbb..347482d 100644
--- a/varlink_stdinterfaces/src/org_varlink_service.rs
+++ b/varlink_stdinterfaces/src/org_varlink_service.rs
@@ -238,7 +238,7 @@ pub trait Call_GetInfo: varlink::CallTrait {
     }
 }
 
-impl<'a> Call_GetInfo for varlink::Call<'a> {}
+impl Call_GetInfo for varlink::Call<'_> {}
 
 #[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
 pub struct GetInterfaceDescription_Reply {
@@ -258,7 +258,7 @@ pub trait Call_GetInterfaceDescription: varlink::CallTrait {
     }
 }
 
-impl<'a> Call_GetInterfaceDescription for varlink::Call<'a> {}
+impl Call_GetInterfaceDescription for varlink::Call<'_> {}
 
 pub trait VarlinkInterface {
     fn get_info(&self, call: &mut dyn Call_GetInfo) -> varlink::Result<()>;