1 files changed, 3 insertions, 3 deletions
diff --git a/src/ser.rs b/src/ser.rs
index fb765d7..1530edc 100644
--- a/src/ser.rs
+++ b/src/ser.rs
@@ -22,10 +22,10 @@ impl EncodeSet for QS_ENCODE_SET {
             | b'*'
             | b'-'
             | b'.'
-            | b'0'...b'9'
-            | b'A'...b'Z'
+            | b'0'..=b'9'
+            | b'A'..=b'Z'
             | b'_'
-            | b'a'...b'z' => false,
+            | b'a'..=b'z' => false,
             _ => true,
         }
     }