diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b4bc6c..be8efc2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -117,6 +117,7 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: nightly
+          components: clippy
 
       - name: cargo check
         run: cargo check --all-features --benches
@@ -154,6 +155,8 @@ jobs:
 
       - name: Install toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: stable
 
       - name: Install cargo-sync-readme
         run: cargo install cargo-sync-readme
diff --git a/Cargo.toml b/Cargo.toml
index 4fba2c1..ba48e8a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,3 +36,6 @@ regex_support = ["regex"]
 ron = "0.7.0"
 rand = "0.8.5"
 rand_pcg = "0.3.1"
+
+[lints.rust]
+ unexpected_cfgs = { level = "warn", check-cfg = ['cfg(tarpaulin_include)'] }
\ No newline at end of file
diff --git a/benches/benchs.rs b/benches/benchs.rs
index cab2ee0..132a12b 100644
--- a/benches/benchs.rs
+++ b/benches/benchs.rs
@@ -16,8 +16,8 @@ const EXPONENTIAL_TUPLE_ITERATIONS: usize = 12;
 
 fn generate_expression<Gen: Rng>(len: usize, gen: &mut Gen) -> String {
     let int_distribution = Uniform::new_inclusive(1, 100);
-    let whitespaces = vec![" ", "", "", "  ", " \n", "       "];
-    let operators = vec!["+", "-", "*", "/", "%", "^"];
+    let whitespaces = [" ", "", "", "  ", " \n", "       "];
+    let operators = ["+", "-", "*", "/", "%", "^"];
     let mut result = String::new();
     write!(result, "{}", gen.sample(int_distribution)).unwrap();
 
diff --git a/src/context/predefined/mod.rs b/src/context/predefined/mod.rs
index 1b1f4b6..ad8e785 100644
--- a/src/context/predefined/mod.rs
+++ b/src/context/predefined/mod.rs
@@ -1,4 +1,5 @@
 /// Context with all Rust's constants in `f64::consts` available by default.
+///
 /// Alternatively, specifiy constants with `math_consts_context!(E, PI, TAU, ...)`
 /// Available constants can be found in the [`core::f64::consts module`](https://doc.rust-lang.org/nightly/core/f64/consts/index.html).
 #[macro_export]
diff --git a/src/feature_serde/mod.rs b/src/feature_serde/mod.rs
index 9cb2789..ee2f85f 100644
--- a/src/feature_serde/mod.rs
+++ b/src/feature_serde/mod.rs
@@ -13,7 +13,7 @@ impl<'de> Deserialize<'de> for Node {
 
 struct NodeVisitor;
 
-impl<'de> de::Visitor<'de> for NodeVisitor {
+impl de::Visitor<'_> for NodeVisitor {
     type Value = Node;
 
     fn expecting(&self, f: &mut fmt::Formatter) -> fmt::Result {
diff --git a/src/function/builtin.rs b/src/function/builtin.rs
index be55e93..da543bc 100644
--- a/src/function/builtin.rs
+++ b/src/function/builtin.rs
@@ -110,7 +110,7 @@ pub fn builtin_function(identifier: &str) -> Option<Function> {
         })),
         "min" => Some(Function::new(|argument| {
             let arguments = argument.as_tuple()?;
-            let mut min_int = IntType::max_value();
+            let mut min_int = IntType::MAX;
             let mut min_float: FloatType = 1.0 / 0.0;
             debug_assert!(min_float.is_infinite());
 
@@ -132,7 +132,7 @@ pub fn builtin_function(identifier: &str) -> Option<Function> {
         })),
         "max" => Some(Function::new(|argument| {
             let arguments = argument.as_tuple()?;
-            let mut max_int = IntType::min_value();
+            let mut max_int = IntType::MIN;
             let mut max_float: FloatType = -1.0 / 0.0;
             debug_assert!(max_float.is_infinite());
 
diff --git a/src/function/mod.rs b/src/function/mod.rs
index 75d5a4c..c590107 100644
--- a/src/function/mod.rs
+++ b/src/function/mod.rs
@@ -78,6 +78,8 @@ impl fmt::Debug for Function {
 
 /// A trait to ensure a type is `Send` and `Sync`.
 /// If implemented for a type, the crate will not compile if the type is not `Send` and `Sync`.
+#[allow(dead_code)]
+#[doc(hidden)]
 trait IsSendAndSync: Send + Sync {}
 
 impl IsSendAndSync for Function {}
diff --git a/tests/integration.rs b/tests/integration.rs
index 695056b..f63acec 100644
--- a/tests/integration.rs
+++ b/tests/integration.rs
@@ -583,33 +583,13 @@ fn test_errors() {
 
 #[test]
 fn test_no_panic() {
-    assert!(eval(&format!(
-        "{} + {}",
-        IntType::max_value(),
-        IntType::max_value()
-    ))
-    .is_err());
-    assert!(eval(&format!(
-        "-{} - {}",
-        IntType::max_value(),
-        IntType::max_value()
-    ))
-    .is_err());
-    assert!(eval(&format!("-(-{} - 1)", IntType::max_value())).is_err());
-    assert!(eval(&format!(
-        "{} * {}",
-        IntType::max_value(),
-        IntType::max_value()
-    ))
-    .is_err());
-    assert!(eval(&format!("{} / {}", IntType::max_value(), 0)).is_err());
-    assert!(eval(&format!("{} % {}", IntType::max_value(), 0)).is_err());
-    assert!(eval(&format!(
-        "{} ^ {}",
-        IntType::max_value(),
-        IntType::max_value()
-    ))
-    .is_ok());
+    assert!(eval(&format!("{} + {}", IntType::MAX, IntType::MAX)).is_err());
+    assert!(eval(&format!("-{} - {}", IntType::MAX, IntType::MAX)).is_err());
+    assert!(eval(&format!("-(-{} - 1)", IntType::MAX)).is_err());
+    assert!(eval(&format!("{} * {}", IntType::MAX, IntType::MAX)).is_err());
+    assert!(eval(&format!("{} / {}", IntType::MAX, 0)).is_err());
+    assert!(eval(&format!("{} % {}", IntType::MAX, 0)).is_err());
+    assert!(eval(&format!("{} ^ {}", IntType::MAX, IntType::MAX)).is_ok());
     assert!(eval("if").is_err());
     assert!(eval("if()").is_err());
     assert!(eval("if(true, 1)").is_err());