diff --git a/.github/workflows/ci-tool-checks.yml b/.github/workflows/ci-tool-checks.yml
index 6582c551..84da91a4 100644
--- a/.github/workflows/ci-tool-checks.yml
+++ b/.github/workflows/ci-tool-checks.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         toolchain:
-          - 1.62.1
+          - 1.70.0
 
     steps:
       - name: Checkout repository
diff --git a/src/si/thermal_conductance.rs b/src/si/thermal_conductance.rs
index 865eec1b..c67e6495 100644
--- a/src/si/thermal_conductance.rs
+++ b/src/si/thermal_conductance.rs
@@ -198,36 +198,35 @@ mod tests {
         }
 
         #[test]
-        fn check_power_per_length_ti_units() {
-            test::<p::yottawatt, l::meter, ti::kelvin, tc::yottawatt_per_kelvin>();
-            test::<p::zettawatt, l::meter, ti::kelvin, tc::zettawatt_per_kelvin>();
-            test::<p::exawatt, l::meter, ti::kelvin, tc::exawatt_per_kelvin>();
-            test::<p::petawatt, l::meter, ti::kelvin, tc::petawatt_per_kelvin>();
-            test::<p::terawatt, l::meter, ti::kelvin, tc::terawatt_per_kelvin>();
-            test::<p::gigawatt, l::meter, ti::kelvin, tc::gigawatt_per_kelvin>();
-            test::<p::megawatt, l::meter, ti::kelvin, tc::megawatt_per_kelvin>();
-            test::<p::kilowatt, l::meter, ti::kelvin, tc::kilowatt_per_kelvin>();
-            test::<p::hectowatt, l::meter, ti::kelvin, tc::hectowatt_per_kelvin>();
-            test::<p::decawatt, l::meter, ti::kelvin, tc::decawatt_per_kelvin>();
-            test::<p::watt, l::meter, ti::kelvin, tc::watt_per_kelvin>();
-            test::<p::deciwatt, l::meter, ti::kelvin, tc::deciwatt_per_kelvin>();
-            test::<p::centiwatt, l::meter, ti::kelvin, tc::centiwatt_per_kelvin>();
-            test::<p::milliwatt, l::meter, ti::kelvin, tc::milliwatt_per_kelvin>();
-            test::<p::microwatt, l::meter, ti::kelvin, tc::microwatt_per_kelvin>();
-            test::<p::nanowatt, l::meter, ti::kelvin, tc::nanowatt_per_kelvin>();
-            test::<p::picowatt, l::meter, ti::kelvin, tc::picowatt_per_kelvin>();
-            test::<p::femtowatt, l::meter, ti::kelvin, tc::femtowatt_per_kelvin>();
-            test::<p::attowatt, l::meter, ti::kelvin, tc::attowatt_per_kelvin>();
-            test::<p::zeptowatt, l::meter, ti::kelvin, tc::zeptowatt_per_kelvin>();
-            test::<p::yoctowatt, l::meter, ti::kelvin, tc::yoctowatt_per_kelvin>();
+        fn check_power_ti_units() {
+            test::<p::yottawatt, ti::kelvin, tc::yottawatt_per_kelvin>();
+            test::<p::zettawatt, ti::kelvin, tc::zettawatt_per_kelvin>();
+            test::<p::exawatt, ti::kelvin, tc::exawatt_per_kelvin>();
+            test::<p::petawatt, ti::kelvin, tc::petawatt_per_kelvin>();
+            test::<p::terawatt, ti::kelvin, tc::terawatt_per_kelvin>();
+            test::<p::gigawatt, ti::kelvin, tc::gigawatt_per_kelvin>();
+            test::<p::megawatt, ti::kelvin, tc::megawatt_per_kelvin>();
+            test::<p::kilowatt, ti::kelvin, tc::kilowatt_per_kelvin>();
+            test::<p::hectowatt, ti::kelvin, tc::hectowatt_per_kelvin>();
+            test::<p::decawatt, ti::kelvin, tc::decawatt_per_kelvin>();
+            test::<p::watt, ti::kelvin, tc::watt_per_kelvin>();
+            test::<p::deciwatt, ti::kelvin, tc::deciwatt_per_kelvin>();
+            test::<p::centiwatt, ti::kelvin, tc::centiwatt_per_kelvin>();
+            test::<p::milliwatt, ti::kelvin, tc::milliwatt_per_kelvin>();
+            test::<p::microwatt, ti::kelvin, tc::microwatt_per_kelvin>();
+            test::<p::nanowatt, ti::kelvin, tc::nanowatt_per_kelvin>();
+            test::<p::picowatt, ti::kelvin, tc::picowatt_per_kelvin>();
+            test::<p::femtowatt, ti::kelvin, tc::femtowatt_per_kelvin>();
+            test::<p::attowatt, ti::kelvin, tc::attowatt_per_kelvin>();
+            test::<p::zeptowatt, ti::kelvin, tc::zeptowatt_per_kelvin>();
+            test::<p::yoctowatt, ti::kelvin, tc::yoctowatt_per_kelvin>();
 
-            test::<p::kilowatt, l::meter, ti::degree_celsius, tc::kilowatt_per_degree_celsius>();
-            test::<p::watt, l::meter, ti::degree_celsius, tc::watt_per_meter_degree_celsius>();
-            test::<p::milliwatt, l::meter, ti::degree_celsius, tc::milliwatt_per_degree_celsius>();
+            test::<p::kilowatt, ti::degree_celsius, tc::kilowatt_per_degree_celsius>();
+            test::<p::watt, ti::degree_celsius, tc::watt_per_meter_degree_celsius>();
+            test::<p::milliwatt, ti::degree_celsius, tc::milliwatt_per_degree_celsius>();
 
             fn test<
                 P: p::Conversion<V>,
-                L: l::Conversion<V>,
                 TI: ti::Conversion<V>,
                 TC: tc::Conversion<V>>()
             {
diff --git a/src/system.rs b/src/system.rs
index a9fb3b70..d73ff3c1 100644
--- a/src/system.rs
+++ b/src/system.rs
@@ -987,7 +987,7 @@ macro_rules! system {
             U: Units<V> + ?Sized,
             V: $crate::num::Num + $crate::Conversion<V> + $crate::lib::fmt::Debug,
         {
-            fn fmt<'a>(&self, f: &mut $crate::lib::fmt::Formatter<'a>) -> $crate::lib::fmt::Result {
+            fn fmt(&self, f: &mut $crate::lib::fmt::Formatter) -> $crate::lib::fmt::Result {
                 self.value.fmt(f)
                 $(.and_then(|_| {
                     let d = <D::$symbol as $crate::typenum::Integer>::to_i32();
@@ -1514,7 +1514,7 @@ macro_rules! system {
                         V: Num + Conversion<V> + fmt::$style,
                         N: Unit + Conversion<V, T = V::T>,
                     {
-                        fn fmt<'a>(&self, f: &mut fmt::Formatter<'a>) -> fmt::Result {
+                        fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
                             let value = from_base::<D, U, V, N>(&self.quantity.value);
 
                             value.fmt(f)?;