diff --git a/crates/polars-io/src/parquet/read/read_impl.rs b/crates/polars-io/src/parquet/read/read_impl.rs
index 2eb72b4b943a..e0a096de498e 100644
--- a/crates/polars-io/src/parquet/read/read_impl.rs
+++ b/crates/polars-io/src/parquet/read/read_impl.rs
@@ -905,8 +905,8 @@ pub fn read_parquet<R: MmapBytesReader>(
         let mut do_prefilter = false;
 
         do_prefilter |= prefilter_env == Ok("1"); // Force enable
-        do_prefilter |= (num_live_variables * n_row_groups >= POOL.current_num_threads()
-            && materialized_projection.len() >= num_live_variables);
+        do_prefilter |= num_live_variables * n_row_groups >= POOL.current_num_threads()
+            && materialized_projection.len() >= num_live_variables;
 
         do_prefilter &= prefilter_env != Ok("0"); // Force disable
 
diff --git a/crates/polars-parquet/src/arrow/read/deserialize/nested_utils.rs b/crates/polars-parquet/src/arrow/read/deserialize/nested_utils.rs
index f4a53a123089..78b4a813693d 100644
--- a/crates/polars-parquet/src/arrow/read/deserialize/nested_utils.rs
+++ b/crates/polars-parquet/src/arrow/read/deserialize/nested_utils.rs
@@ -218,7 +218,7 @@ pub struct BatchedNestedDecoder<'a> {
     validity: &'a mut MutableBitmap,
 }
 
-impl<'a> BatchedNestedDecoder<'a> {
+impl BatchedNestedDecoder<'_> {
     fn push_valid(&mut self) -> ParquetResult<()> {
         self.push_n_valids(1)
     }
diff --git a/crates/polars-parquet/src/arrow/read/deserialize/utils/mod.rs b/crates/polars-parquet/src/arrow/read/deserialize/utils/mod.rs
index 057870db828d..960c11d75c12 100644
--- a/crates/polars-parquet/src/arrow/read/deserialize/utils/mod.rs
+++ b/crates/polars-parquet/src/arrow/read/deserialize/utils/mod.rs
@@ -43,7 +43,7 @@ impl<'a, D: Decoder> State<'a, D> {
         let mut page_validity = None;
 
         // Make the page_validity None if there are no nulls in the page
-        if is_optional && !page.null_count().is_some_and(|nc| nc == 0) {
+        if is_optional && page.null_count().is_none_or(|nc| nc != 0) {
             let pv = page_validity_decoder(page)?;
             let pv = decode_page_validity(pv, None)?;
 
diff --git a/crates/polars-parquet/src/parquet/encoding/delta_byte_array/decoder.rs b/crates/polars-parquet/src/parquet/encoding/delta_byte_array/decoder.rs
index 1d1b82e7cd49..bcdf9403b7be 100644
--- a/crates/polars-parquet/src/parquet/encoding/delta_byte_array/decoder.rs
+++ b/crates/polars-parquet/src/parquet/encoding/delta_byte_array/decoder.rs
@@ -52,7 +52,7 @@ impl<'a> Decoder<'a> {
     }
 }
 
-impl<'a> Iterator for Decoder<'a> {
+impl Iterator for Decoder<'_> {
     type Item = ParquetResult<Vec<u8>>;
 
     fn next(&mut self) -> Option<Self::Item> {
@@ -92,7 +92,7 @@ impl<'a> Iterator for Decoder<'a> {
     }
 }
 
-impl<'a> ExactSizeIterator for Decoder<'a> {}
+impl ExactSizeIterator for Decoder<'_> {}
 
 #[cfg(test)]
 mod tests {
diff --git a/crates/polars-utils/src/chunks.rs b/crates/polars-utils/src/chunks.rs
index 21fc37e99aff..80f720eb2fd7 100644
--- a/crates/polars-utils/src/chunks.rs
+++ b/crates/polars-utils/src/chunks.rs
@@ -25,7 +25,7 @@ impl<'a, T> Iterator for Chunks<'a, T> {
     }
 }
 
-impl<'a, T> DoubleEndedIterator for Chunks<'a, T> {
+impl<T> DoubleEndedIterator for Chunks<'_, T> {
     fn next_back(&mut self) -> Option<Self::Item> {
         if self.slice.is_empty() {
             return None;
@@ -41,7 +41,7 @@ impl<'a, T> DoubleEndedIterator for Chunks<'a, T> {
     }
 }
 
-impl<'a, T> ExactSizeIterator for Chunks<'a, T> {}
+impl<T> ExactSizeIterator for Chunks<'_, T> {}
 
 impl<'a, T> Chunks<'a, T> {
     pub const fn new(slice: &'a [T], chunk_size: usize) -> Self {