diff --git a/lib/rs/src/protocol/binary.rs b/lib/rs/src/protocol/binary.rs
index 0920fc4..2069cf9 100644
--- a/lib/rs/src/protocol/binary.rs
+++ b/lib/rs/src/protocol/binary.rs
@@ -249,7 +249,7 @@
 }
 
 impl TInputProtocolFactory for TBinaryInputProtocolFactory {
-    fn create(&self, transport: Box<TReadTransport + Send>) -> Box<TInputProtocol + Send> {
+    fn create(&self, transport: Box<dyn TReadTransport + Send>) -> Box<dyn TInputProtocol + Send> {
         Box::new(TBinaryInputProtocol::new(transport, true))
     }
 }
@@ -453,7 +453,7 @@
 }
 
 impl TOutputProtocolFactory for TBinaryOutputProtocolFactory {
-    fn create(&self, transport: Box<TWriteTransport + Send>) -> Box<TOutputProtocol + Send> {
+    fn create(&self, transport: Box<dyn TWriteTransport + Send>) -> Box<dyn TOutputProtocol + Send> {
         Box::new(TBinaryOutputProtocol::new(transport, true))
     }
 }
diff --git a/lib/rs/src/protocol/compact.rs b/lib/rs/src/protocol/compact.rs
index 334e820..1750bc4 100644
--- a/lib/rs/src/protocol/compact.rs
+++ b/lib/rs/src/protocol/compact.rs
@@ -322,7 +322,7 @@
 }
 
 impl TInputProtocolFactory for TCompactInputProtocolFactory {
-    fn create(&self, transport: Box<TReadTransport + Send>) -> Box<TInputProtocol + Send> {
+    fn create(&self, transport: Box<dyn TReadTransport + Send>) -> Box<dyn TInputProtocol + Send> {
         Box::new(TCompactInputProtocol::new(transport))
     }
 }
@@ -593,7 +593,7 @@
 }
 
 impl TOutputProtocolFactory for TCompactOutputProtocolFactory {
-    fn create(&self, transport: Box<TWriteTransport + Send>) -> Box<TOutputProtocol + Send> {
+    fn create(&self, transport: Box<dyn TWriteTransport + Send>) -> Box<dyn TOutputProtocol + Send> {
         Box::new(TCompactOutputProtocol::new(transport))
     }
 }
diff --git a/lib/rs/src/protocol/mod.rs b/lib/rs/src/protocol/mod.rs
index 1ab1658..2d8513f 100644
--- a/lib/rs/src/protocol/mod.rs
+++ b/lib/rs/src/protocol/mod.rs
@@ -546,14 +546,14 @@
 /// ```
 pub trait TInputProtocolFactory {
     // Create a `TInputProtocol` that reads bytes from `transport`.
-    fn create(&self, transport: Box<TReadTransport + Send>) -> Box<TInputProtocol + Send>;
+    fn create(&self, transport: Box<dyn TReadTransport + Send>) -> Box<dyn TInputProtocol + Send>;
 }
 
 impl<T> TInputProtocolFactory for Box<T>
 where
     T: TInputProtocolFactory + ?Sized,
 {
-    fn create(&self, transport: Box<TReadTransport + Send>) -> Box<TInputProtocol + Send> {
+    fn create(&self, transport: Box<dyn TReadTransport + Send>) -> Box<dyn TInputProtocol + Send> {
         (**self).create(transport)
     }
 }
@@ -577,14 +577,14 @@
 /// ```
 pub trait TOutputProtocolFactory {
     /// Create a `TOutputProtocol` that writes bytes to `transport`.
-    fn create(&self, transport: Box<TWriteTransport + Send>) -> Box<TOutputProtocol + Send>;
+    fn create(&self, transport: Box<dyn TWriteTransport + Send>) -> Box<dyn TOutputProtocol + Send>;
 }
 
 impl<T> TOutputProtocolFactory for Box<T>
 where
     T: TOutputProtocolFactory + ?Sized,
 {
-    fn create(&self, transport: Box<TWriteTransport + Send>) -> Box<TOutputProtocol + Send> {
+    fn create(&self, transport: Box<dyn TWriteTransport + Send>) -> Box<dyn TOutputProtocol + Send> {
         (**self).create(transport)
     }
 }
@@ -926,29 +926,29 @@
 
     #[test]
     fn must_create_usable_input_protocol_from_concrete_input_protocol() {
-        let r: Box<TReadTransport> = Box::new(Cursor::new([0, 1, 2]));
+        let r: Box<dyn TReadTransport> = Box::new(Cursor::new([0, 1, 2]));
         let mut t = TCompactInputProtocol::new(r);
         takes_input_protocol(&mut t)
     }
 
     #[test]
     fn must_create_usable_input_protocol_from_boxed_input() {
-        let r: Box<TReadTransport> = Box::new(Cursor::new([0, 1, 2]));
-        let mut t: Box<TInputProtocol> = Box::new(TCompactInputProtocol::new(r));
+        let r: Box<dyn TReadTransport> = Box::new(Cursor::new([0, 1, 2]));
+        let mut t: Box<dyn TInputProtocol> = Box::new(TCompactInputProtocol::new(r));
         takes_input_protocol(&mut t)
     }
 
     #[test]
     fn must_create_usable_output_protocol_from_concrete_output_protocol() {
-        let w: Box<TWriteTransport> = Box::new(vec![0u8; 10]);
+        let w: Box<dyn TWriteTransport> = Box::new(vec![0u8; 10]);
         let mut t = TCompactOutputProtocol::new(w);
         takes_output_protocol(&mut t)
     }
 
     #[test]
     fn must_create_usable_output_protocol_from_boxed_output() {
-        let w: Box<TWriteTransport> = Box::new(vec![0u8; 10]);
-        let mut t: Box<TOutputProtocol> = Box::new(TCompactOutputProtocol::new(w));
+        let w: Box<dyn TWriteTransport> = Box::new(vec![0u8; 10]);
+        let mut t: Box<dyn TOutputProtocol> = Box::new(TCompactOutputProtocol::new(w));
         takes_output_protocol(&mut t)
     }
 
diff --git a/lib/rs/src/protocol/stored.rs b/lib/rs/src/protocol/stored.rs
index 4fe465f..faa5128 100644
--- a/lib/rs/src/protocol/stored.rs
+++ b/lib/rs/src/protocol/stored.rs
@@ -79,7 +79,7 @@
 /// ```
 // FIXME: implement Debug
 pub struct TStoredInputProtocol<'a> {
-    inner: &'a mut TInputProtocol,
+    inner: &'a mut dyn TInputProtocol,
     message_ident: Option<TMessageIdentifier>,
 }
 
@@ -90,7 +90,7 @@
     /// with service name stripped - that will be passed to
     /// `wrapped.read_message_begin(...)`.
     pub fn new(
-        wrapped: &mut TInputProtocol,
+        wrapped: &mut dyn TInputProtocol,
         message_ident: TMessageIdentifier,
     ) -> TStoredInputProtocol {
         TStoredInputProtocol {