diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2bb9a234..8296d085 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
           - { name: Windows (MinGW), os: windows-latest, triple: x86_64-pc-windows-gnu }
           - { name: Windows (32-bit), os: windows-latest, triple: i686-pc-windows-msvc }
         version:
-          - 1.46.0 # MSRV
+          - 1.51.0 # MSRV
           - stable
           - nightly
 
diff --git a/actix-server/src/waker.rs b/actix-server/src/waker.rs
index 7baed05b..af060bd9 100644
--- a/actix-server/src/waker.rs
+++ b/actix-server/src/waker.rs
@@ -99,18 +99,20 @@ mod test {
 
     #[test]
     fn test_waker_channel() {
-        let poll = mio::Poll::new().unwrap();
+        let mut poll = mio::Poll::new().unwrap();
 
         let waker = from_registry(poll.registry()).unwrap();
-
         let cx = &mut Context::from_waker(&waker);
 
         let (tx, mut rx) = waker_channel();
-
         assert!(rx.poll_recv(cx).is_pending());
 
         tx.wake(super::WakerInterest::Stop);
 
+        let mut events = mio::Events::with_capacity(1);
+        poll.poll(&mut events, None).unwrap();
+        assert_eq!(events.iter().next().unwrap().token(), WAKER_TOKEN);
+
         match rx.poll_recv(cx) {
             Poll::Ready(Some(WakerInterest::Stop)) => {}
             _ => panic!("Failed to wake up WakerRx"),