diff --git a/gstreamer/src/buffer.rs b/gstreamer/src/buffer.rs
index c6c4029c6..70d8018ac 100644
--- a/gstreamer/src/buffer.rs
+++ b/gstreamer/src/buffer.rs
@@ -221,7 +221,7 @@ impl BufferRef {
                 return Err(glib::bool_error!("Invalid range start"));
             }
             ops::Bound::Included(idx) => *idx,
-            ops::Bound::Excluded(idx) if idx.checked_add(1).map_or(true, |idx| idx >= n_memory) => {
+            ops::Bound::Excluded(idx) if idx.checked_add(1).is_none_or(|idx| idx >= n_memory) => {
                 return Err(glib::bool_error!("Invalid range start"));
             }
             ops::Bound::Excluded(idx) => *idx + 1,
@@ -229,7 +229,7 @@ impl BufferRef {
         };
 
         let end_idx = match range.end_bound() {
-            ops::Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx > n_memory) => {
+            ops::Bound::Included(idx) if idx.checked_add(1).is_none_or(|idx| idx > n_memory) => {
                 return Err(glib::bool_error!("Invalid range end"));
             }
             ops::Bound::Included(idx) => *idx + 1,
@@ -313,7 +313,7 @@ impl BufferRef {
                 return Err(glib::bool_error!("Invalid range start"));
             }
             ops::Bound::Included(idx) => *idx,
-            ops::Bound::Excluded(idx) if idx.checked_add(1).map_or(true, |idx| idx >= size) => {
+            ops::Bound::Excluded(idx) if idx.checked_add(1).is_none_or(|idx| idx >= size) => {
                 return Err(glib::bool_error!("Invalid range start"));
             }
             ops::Bound::Excluded(idx) => *idx + 1,
@@ -321,7 +321,7 @@ impl BufferRef {
         };
 
         let end_idx = match range.end_bound() {
-            ops::Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx > size) => {
+            ops::Bound::Included(idx) if idx.checked_add(1).is_none_or(|idx| idx > size) => {
                 return Err(glib::bool_error!("Invalid range end"));
             }
             ops::Bound::Included(idx) => *idx + 1,
@@ -1399,7 +1399,7 @@ impl Dump<'_> {
                 write!(f, "<start out of range>")?;
                 return Ok(());
             }
-            Bound::Excluded(idx) if idx.checked_add(1).map_or(true, |idx| idx >= len) => {
+            Bound::Excluded(idx) if idx.checked_add(1).is_none_or(|idx| idx >= len) => {
                 write!(f, "<start out of range>")?;
                 return Ok(());
             }
@@ -1409,7 +1409,7 @@ impl Dump<'_> {
         };
 
         let end_idx = match self.end {
-            Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx > len) => {
+            Bound::Included(idx) if idx.checked_add(1).is_none_or(|idx| idx > len) => {
                 write!(f, "<end out of range>")?;
                 return Ok(());
             }
diff --git a/gstreamer/src/pad.rs b/gstreamer/src/pad.rs
index e874b7349..5405204b0 100644
--- a/gstreamer/src/pad.rs
+++ b/gstreamer/src/pad.rs
@@ -2176,7 +2176,7 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
                                     Some("u") => {
                                         if name_part
                                             .get(conv_spec_start..)
-                                            .map_or(true, |s| s.parse::<u32>().is_err())
+                                            .is_none_or(|s| s.parse::<u32>().is_err())
                                         {
                                             crate::debug!(
                                             CAT_RUST,
@@ -2191,7 +2191,7 @@ impl<T: IsA<Pad> + IsA<glib::Object> + glib::object::IsClass> PadBuilder<T> {
                                     Some("d") => {
                                         if name_part
                                             .get(conv_spec_start..)
-                                            .map_or(true, |s| s.parse::<i32>().is_err())
+                                            .is_none_or(|s| s.parse::<i32>().is_err())
                                         {
                                             crate::debug!(
                                             CAT_RUST,
diff --git a/gstreamer/src/slice.rs b/gstreamer/src/slice.rs
index f968773e7..8554157fa 100644
--- a/gstreamer/src/slice.rs
+++ b/gstreamer/src/slice.rs
@@ -46,7 +46,7 @@ impl Dump<'_> {
                 write!(f, "<start out of range>")?;
                 return Ok(());
             }
-            Bound::Excluded(idx) if idx.checked_add(1).map_or(true, |idx| idx >= len) => {
+            Bound::Excluded(idx) if idx.checked_add(1).is_none_or(|idx| idx >= len) => {
                 write!(f, "<start out of range>")?;
                 return Ok(());
             }
@@ -56,7 +56,7 @@ impl Dump<'_> {
         };
 
         let end_idx = match self.end {
-            Bound::Included(idx) if idx.checked_add(1).map_or(true, |idx| idx > len) => {
+            Bound::Included(idx) if idx.checked_add(1).is_none_or(|idx| idx > len) => {
                 write!(f, "<end out of range>")?;
                 return Ok(());
             }