diff --git a/tests/test_datetime.rs b/tests/test_datetime.rs
index 94545f18..e30af164 100644
--- a/tests/test_datetime.rs
+++ b/tests/test_datetime.rs
@@ -122,7 +122,7 @@ fn test_datetime_utc() {
     assert_eq!(offset, 0f32);
 }
 
-static INVALID_DATES: &'static [(i32, u8, u8)] = &[
+static INVALID_DATES: &[(i32, u8, u8)] = &[
     (-1, 1, 1),
     (0, 1, 1),
     (10000, 1, 1),
@@ -134,7 +134,7 @@ static INVALID_DATES: &'static [(i32, u8, u8)] = &[
     (2018, 1, 32),
 ];
 
-static INVALID_TIMES: &'static [(u8, u8, u8, u32)] =
+static INVALID_TIMES: &[(u8, u8, u8, u32)] =
     &[(25, 0, 0, 0), (255, 0, 0, 0), (0, 60, 0, 0), (0, 0, 61, 0)];
 
 #[cfg(Py_3_6)]