diff --git a/meilidb-core/src/criterion/document_id.rs b/meilidb-core/src/criterion/document_id.rs
index 34d0bd7f5..15549da24 100644
--- a/meilidb-core/src/criterion/document_id.rs
+++ b/meilidb-core/src/criterion/document_id.rs
@@ -10,7 +10,7 @@ impl Criterion for DocumentId {
         lhs.id.cmp(&rhs.id)
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "DocumentId"
     }
 }
diff --git a/meilidb-core/src/criterion/exact.rs b/meilidb-core/src/criterion/exact.rs
index bde3ca733..820c35aa0 100644
--- a/meilidb-core/src/criterion/exact.rs
+++ b/meilidb-core/src/criterion/exact.rs
@@ -37,7 +37,7 @@ impl Criterion for Exact {
         lhs.cmp(&rhs).reverse()
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "Exact"
     }
 }
diff --git a/meilidb-core/src/criterion/mod.rs b/meilidb-core/src/criterion/mod.rs
index 53a781e26..ad02d3023 100644
--- a/meilidb-core/src/criterion/mod.rs
+++ b/meilidb-core/src/criterion/mod.rs
@@ -24,7 +24,7 @@ pub use self::{
 pub trait Criterion: Send + Sync {
     fn evaluate(&self, lhs: &RawDocument, rhs: &RawDocument) -> Ordering;
 
-    fn name(&self) -> &'static str;
+    fn name(&self) -> &str;
 
     #[inline]
     fn eq(&self, lhs: &RawDocument, rhs: &RawDocument) -> bool {
@@ -37,7 +37,7 @@ impl<'a, T: Criterion + ?Sized + Send + Sync> Criterion for &'a T {
         (**self).evaluate(lhs, rhs)
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         (**self).name()
     }
 
@@ -51,7 +51,7 @@ impl<T: Criterion + ?Sized> Criterion for Box<T> {
         (**self).evaluate(lhs, rhs)
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         (**self).name()
     }
 
diff --git a/meilidb-core/src/criterion/number_of_words.rs b/meilidb-core/src/criterion/number_of_words.rs
index 43095a066..641385fb1 100644
--- a/meilidb-core/src/criterion/number_of_words.rs
+++ b/meilidb-core/src/criterion/number_of_words.rs
@@ -25,7 +25,7 @@ impl Criterion for NumberOfWords {
         lhs.cmp(&rhs).reverse()
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "NumberOfWords"
     }
 }
diff --git a/meilidb-core/src/criterion/sort_by_attr.rs b/meilidb-core/src/criterion/sort_by_attr.rs
index 68a5e5b69..c19062dd6 100644
--- a/meilidb-core/src/criterion/sort_by_attr.rs
+++ b/meilidb-core/src/criterion/sort_by_attr.rs
@@ -101,7 +101,7 @@ impl<'a> Criterion for SortByAttr<'a> {
         }
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "SortByAttr"
     }
 }
diff --git a/meilidb-core/src/criterion/sum_of_typos.rs b/meilidb-core/src/criterion/sum_of_typos.rs
index 6736e6caa..9fbf0dab9 100644
--- a/meilidb-core/src/criterion/sum_of_typos.rs
+++ b/meilidb-core/src/criterion/sum_of_typos.rs
@@ -54,7 +54,7 @@ impl Criterion for SumOfTypos {
         lhs.cmp(&rhs).reverse()
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "SumOfTypos"
     }
 }
diff --git a/meilidb-core/src/criterion/sum_of_words_attribute.rs b/meilidb-core/src/criterion/sum_of_words_attribute.rs
index d5787ef3a..2bf052159 100644
--- a/meilidb-core/src/criterion/sum_of_words_attribute.rs
+++ b/meilidb-core/src/criterion/sum_of_words_attribute.rs
@@ -36,7 +36,7 @@ impl Criterion for SumOfWordsAttribute {
         lhs.cmp(&rhs)
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "SumOfWordsAttribute"
     }
 }
diff --git a/meilidb-core/src/criterion/sum_of_words_position.rs b/meilidb-core/src/criterion/sum_of_words_position.rs
index 13f26774c..d5dd10ab7 100644
--- a/meilidb-core/src/criterion/sum_of_words_position.rs
+++ b/meilidb-core/src/criterion/sum_of_words_position.rs
@@ -36,7 +36,7 @@ impl Criterion for SumOfWordsPosition {
         lhs.cmp(&rhs)
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "SumOfWordsPosition"
     }
 }
diff --git a/meilidb-core/src/criterion/words_proximity.rs b/meilidb-core/src/criterion/words_proximity.rs
index 10f167bef..ed3775b50 100644
--- a/meilidb-core/src/criterion/words_proximity.rs
+++ b/meilidb-core/src/criterion/words_proximity.rs
@@ -99,7 +99,7 @@ impl Criterion for WordsProximity {
         lhs.cmp(&rhs)
     }
 
-    fn name(&self) -> &'static str {
+    fn name(&self) -> &str {
         "WordsProximity"
     }
 }