diff --git a/Cargo.toml b/Cargo.toml
index 8b70c78..ac6f85f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,16 +19,20 @@ default = ["opengl"]
 opengl = ["uuid", "x11/glx"]
 
 [dependencies]
-keyboard-types = { version = "0.6.1", default-features = false }
-raw-window-handle = "0.6"
+keyboard-types = { version = "0.7.0", default-features = false }
+raw-window-handle = "0.6.2"
 
 [target.'cfg(target_os="linux")'.dependencies]
-x11rb = { version = "0.13.0", features = ["cursor", "resource_manager", "allow-unsafe-code"] }
-x11 = { version = "2.21", features = ["xlib", "xlib_xcb"] }
-nix = "0.22.0"
+x11rb = { version = "0.13.1", features = [
+    "cursor",
+    "resource_manager",
+    "allow-unsafe-code",
+] }
+x11 = { version = "2.21.0", features = ["xlib", "xlib_xcb"] }
+nix = { version = "0.29.0", features = ["poll"] }
 
 [target.'cfg(target_os="windows")'.dependencies]
-winapi = { version = "0.3.8", features = [
+winapi = { version = "0.3.9", features = [
     "libloaderapi",
     "winuser",
     "windef",
@@ -42,17 +46,17 @@ winapi = { version = "0.3.8", features = [
     "shellapi",
     "winerror",
 ] }
-uuid = { version = "0.8", features = ["v4"], optional = true }
+uuid = { version = "1.10.0", features = ["v4"], optional = true }
 
 [target.'cfg(target_os="macos")'.dependencies]
-cocoa = "0.24.0"
-core-foundation = "0.9.1"
+cocoa = "0.26.0"
+core-foundation = "0.10.0"
 objc = "0.2.7"
-uuid = { version = "0.8", features = ["v4"] }
+uuid = { version = "1.10.0", features = ["v4"] }
 
 [dev-dependencies]
-rtrb = "0.2"
-softbuffer = "0.3.4"
+rtrb = "0.3.1"
+softbuffer = "0.4.5"
 
 [workspace]
 members = ["examples/render_femtovg"]
diff --git a/clippy.toml b/clippy.toml
index 1cc564c..5e68fa1 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1,2 +1,2 @@
-msrv = '1.59'
+msrv = '1.63'
 check-private-items = true
diff --git a/src/gl/win.rs b/src/gl/win.rs
index f4cca6c..5b4a121 100644
--- a/src/gl/win.rs
+++ b/src/gl/win.rs
@@ -86,7 +86,7 @@ impl GlContext {
 
         // Create temporary window and context to load function pointers
 
-        let class_name_str = format!("raw-gl-context-window-{}", uuid::Uuid::new_v4().to_simple());
+        let class_name_str = format!("raw-gl-context-window-{}", uuid::Uuid::new_v4().simple());
         let mut class_name: Vec<WCHAR> = OsStr::new(&class_name_str).encode_wide().collect();
         class_name.push(0);
 
diff --git a/src/macos/view.rs b/src/macos/view.rs
index 5d014f3..4ffd55c 100644
--- a/src/macos/view.rs
+++ b/src/macos/view.rs
@@ -138,7 +138,7 @@ unsafe fn create_view_class() -> &'static Class {
     // the class was stored in a OnceCell after creation. This way, we didn't
     // have to recreate it each time a view was opened, but now we don't leave
     // any class definitions lying around when the plugin is closed.
-    let class_name = format!("BaseviewNSView_{}", Uuid::new_v4().to_simple());
+    let class_name = format!("BaseviewNSView_{}", Uuid::new_v4().simple());
     let mut class = ClassDecl::new(&class_name, class!(NSView)).unwrap();
 
     class.add_method(
diff --git a/src/x11/event_loop.rs b/src/x11/event_loop.rs
index 6b6ecd3..d14bcfc 100644
--- a/src/x11/event_loop.rs
+++ b/src/x11/event_loop.rs
@@ -5,7 +5,7 @@ use crate::{
     WindowInfo,
 };
 use std::error::Error;
-use std::os::fd::AsRawFd;
+use std::os::fd::AsFd;
 use std::time::{Duration, Instant};
 use x11rb::connection::Connection;
 use x11rb::protocol::Event as XEvent;
@@ -68,8 +68,6 @@ impl EventLoop {
     pub fn run(&mut self) -> Result<(), Box<dyn Error>> {
         use nix::poll::*;
 
-        let xcb_fd = self.window.xcb_connection.conn.as_raw_fd();
-
         let mut last_frame = Instant::now();
         self.event_loop_running = true;
 
@@ -86,14 +84,14 @@ impl EventLoop {
                 last_frame = Instant::max(next_frame, Instant::now() - self.frame_interval);
             }
 
-            let mut fds = [PollFd::new(xcb_fd, PollFlags::POLLIN)];
-
             // Check for any events in the internal buffers
             // before going to sleep:
             self.drain_xcb_events()?;
 
+            let mut fds = [PollFd::new(self.window.xcb_connection.conn.as_fd(), PollFlags::POLLIN)];
+
             // FIXME: handle errors
-            poll(&mut fds, next_frame.duration_since(Instant::now()).subsec_millis() as i32)
+            poll(&mut fds, next_frame.duration_since(Instant::now()).subsec_millis() as u16)
                 .unwrap();
 
             if let Some(revents) = fds[0].revents() {