diff --git a/lib/wasi_snapshot_preview1.command.wasm b/lib/wasi_snapshot_preview1.command.wasm
index 9b4552d7c..be7a67ff8 100644
Binary files a/lib/wasi_snapshot_preview1.command.wasm and b/lib/wasi_snapshot_preview1.command.wasm differ
diff --git a/lib/wasi_snapshot_preview1.reactor.wasm b/lib/wasi_snapshot_preview1.reactor.wasm
index ee1f826c3..c2db10094 100644
Binary files a/lib/wasi_snapshot_preview1.reactor.wasm and b/lib/wasi_snapshot_preview1.reactor.wasm differ
diff --git a/submodules/wasmtime b/submodules/wasmtime
index fd6f261e5..b73b18caf 160000
--- a/submodules/wasmtime
+++ b/submodules/wasmtime
@@ -1 +1 @@
-Subproject commit fd6f261e50d2fe63b70c1f9b64f0adbe166e6a9d
+Subproject commit b73b18caff267ab17b912f114278899cfa768f82
diff --git a/submodules/wit-bindgen b/submodules/wit-bindgen
index ce46cf41a..29c1079db 160000
--- a/submodules/wit-bindgen
+++ b/submodules/wit-bindgen
@@ -1 +1 @@
-Subproject commit ce46cf41adc9fc12ed4038588fc992ff55a2312b
+Subproject commit 29c1079dbb1805b7128cf01f07a5e9bfdcbdd934
diff --git a/test/fixtures/wit/deps/io/poll.wit b/test/fixtures/wit/deps/io/poll.wit
index ddc67f8b7..8139064c3 100644
--- a/test/fixtures/wit/deps/io/poll.wit
+++ b/test/fixtures/wit/deps/io/poll.wit
@@ -27,8 +27,9 @@ interface poll {
     /// The result `list<u32>` contains one or more indices of handles in the
     /// argument list that is ready for I/O.
     ///
-    /// If the list contains more elements than can be indexed with a `u32`
-    /// value, this function traps.
+    /// This function traps if either:
+    /// - the list is empty, or:
+    /// - the list contains more elements than can be indexed with a `u32` value.
     ///
     /// A timeout can be implemented by adding a pollable from the
     /// wasi-clocks API to the list.