diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5df3460..af3c079 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,4 +18,4 @@ jobs:
         ./wit-deps lock
         git add -N wit/deps
         git diff --exit-code
-    - uses: WebAssembly/wit-abi-up-to-date@v15
+    - uses: WebAssembly/wit-abi-up-to-date@v16
diff --git a/wit/deps.lock b/wit/deps.lock
index 41d5cbb..e73913b 100644
--- a/wit/deps.lock
+++ b/wit/deps.lock
@@ -1,4 +1,4 @@
 [io]
 url = "https://github.com/WebAssembly/wasi-io/archive/main.tar.gz"
-sha256 = "6e20bcf4d4f5466b60c05ea8da7289ca361a7febdd22ab1a531e5ef7e394ab8d"
-sha512 = "21f6689bce6ed6d9e3bd96372e5c7ed003a7aefbf8d49b4eea949dfbd265cf57a0d7dc67aa71e3de75d48fcc2c0cfe5f06f7e9e7959a23bc98f77da85f4161b9"
+sha256 = "a00c29dd57dc224e8ce28b793b19c1b1001dcdbdc229ed451c3df1db91841b34"
+sha512 = "8558085eeb5689209101cdfbc9782953d559ad14ce77260fe2f7cc472482d568f65cad9e6a688d40c634c6c54c608f27e27e481633446114d6fdead93d4e34c5"
diff --git a/wit/deps/io/poll.wit b/wit/deps/io/poll.wit
index e95762b..254f534 100644
--- a/wit/deps/io/poll.wit
+++ b/wit/deps/io/poll.wit
@@ -1,10 +1,10 @@
-package wasi:io
+package wasi:io;
 
 /// A poll API intended to let users wait for I/O events on multiple handles
 /// at once.
 interface poll {
     /// A "pollable" handle.
-    resource pollable
+    resource pollable;
 
     /// Poll for completion on a set of pollables.
     ///
@@ -24,11 +24,11 @@ interface poll {
     /// do any I/O so it doesn't fail. If any of the I/O sources identified by
     /// the pollables has an error, it is indicated by marking the source as
     /// being reaedy for I/O.
-    poll-list: func(in: list<borrow<pollable>>) -> list<u32>
+    poll-list: func(in: list<borrow<pollable>>) -> list<u32>;
 
     /// Poll for completion on a single pollable.
     ///
     /// This function is similar to `poll-list`, but operates on only a single
     /// pollable. When it returns, the handle is ready for I/O.
-    poll-one: func(in: borrow<pollable>)
+    poll-one: func(in: borrow<pollable>);
 }
diff --git a/wit/deps/io/streams.wit b/wit/deps/io/streams.wit
index eeeff50..cfeab0d 100644
--- a/wit/deps/io/streams.wit
+++ b/wit/deps/io/streams.wit
@@ -1,4 +1,4 @@
-package wasi:io
+package wasi:io;
 
 /// WASI I/O is an I/O abstraction API which is currently focused on providing
 /// stream types.
@@ -6,7 +6,7 @@ package wasi:io
 /// In the future, the component model is expected to add built-in stream types;
 /// when it does, they are expected to subsume this API.
 interface streams {
-    use poll.{pollable}
+    use poll.{pollable};
 
     /// Streams provide a sequence of data and then end; once they end, they
     /// no longer provide any further data.
@@ -58,14 +58,14 @@ interface streams {
         read: func(
             /// The maximum number of bytes to read
             len: u64
-        ) -> result<tuple<list<u8>, stream-status>>
+        ) -> result<tuple<list<u8>, stream-status>>;
 
         /// Read bytes from a stream, after blocking until at least one byte can
         /// be read. Except for blocking, identical to `read`.
         blocking-read: func(
             /// The maximum number of bytes to read
             len: u64
-        ) -> result<tuple<list<u8>, stream-status>>
+        ) -> result<tuple<list<u8>, stream-status>>;
 
         /// Skip bytes from a stream.
         ///
@@ -82,14 +82,14 @@ interface streams {
         skip: func(
             /// The maximum number of bytes to skip.
             len: u64,
-        ) -> result<tuple<u64, stream-status>>
+        ) -> result<tuple<u64, stream-status>>;
 
         /// Skip bytes from a stream, after blocking until at least one byte
         /// can be skipped. Except for blocking behavior, identical to `skip`.
         blocking-skip: func(
             /// The maximum number of bytes to skip.
             len: u64,
-        ) -> result<tuple<u64, stream-status>>
+        ) -> result<tuple<u64, stream-status>>;
 
         /// Create a `pollable` which will resolve once either the specified stream
         /// has bytes available to read or the other end of the stream has been
@@ -97,7 +97,7 @@ interface streams {
         /// The created `pollable` is a child resource of the `input-stream`.
         /// Implementations may trap if the `input-stream` is dropped before
         /// all derived `pollable`s created with this function are dropped.
-        subscribe: func() -> pollable
+        subscribe: func() -> pollable;
     }
 
     /// An error for output-stream operations.
@@ -131,7 +131,7 @@ interface streams {
         /// When this function returns 0 bytes, the `subscribe` pollable will
         /// become ready when this function will report at least 1 byte, or an
         /// error.
-        check-write: func() -> result<u64, write-error>
+        check-write: func() -> result<u64, write-error>;
 
         /// Perform a write. This function never blocks.
         ///
@@ -142,7 +142,7 @@ interface streams {
         /// the last call to check-write provided a permit.
         write: func(
             contents: list<u8>
-        ) -> result<_, write-error>
+        ) -> result<_, write-error>;
 
         /// Perform a write of up to 4096 bytes, and then flush the stream. Block
         /// until all of these operations are complete, or an error occurs.
@@ -170,7 +170,7 @@ interface streams {
         /// ```
         blocking-write-and-flush: func(
             contents: list<u8>
-        ) -> result<_, write-error>
+        ) -> result<_, write-error>;
 
         /// Request to flush buffered output. This function never blocks.
         ///
@@ -182,11 +182,11 @@ interface streams {
         /// writes (`check-write` will return `ok(0)`) until the flush has
         /// completed. The `subscribe` pollable will become ready when the
         /// flush has completed and the stream can accept more writes.
-        flush: func() -> result<_, write-error>
+        flush: func() -> result<_, write-error>;
 
         /// Request to flush buffered output, and block until flush completes
         /// and stream is ready for writing again.
-        blocking-flush: func() -> result<_, write-error>
+        blocking-flush: func() -> result<_, write-error>;
 
         /// Create a `pollable` which will resolve once the output-stream
         /// is ready for more writing, or an error has occured. When this
@@ -198,7 +198,7 @@ interface streams {
         /// The created `pollable` is a child resource of the `output-stream`.
         /// Implementations may trap if the `output-stream` is dropped before
         /// all derived `pollable`s created with this function are dropped.
-        subscribe: func() -> pollable
+        subscribe: func() -> pollable;
 
         /// Write zeroes to a stream.
         ///
@@ -209,7 +209,7 @@ interface streams {
         write-zeroes: func(
             /// The number of zero-bytes to write
             len: u64
-        ) -> result<_, write-error>
+        ) -> result<_, write-error>;
 
         /// Perform a write of up to 4096 zeroes, and then flush the stream.
         /// Block until all of these operations are complete, or an error
@@ -238,7 +238,7 @@ interface streams {
         blocking-write-zeroes-and-flush: func(
             /// The number of zero-bytes to write
             len: u64
-        ) -> result<_, write-error>
+        ) -> result<_, write-error>;
 
         /// Read from one stream and write to another.
         ///
@@ -252,7 +252,7 @@ interface streams {
             src: input-stream,
             /// The number of bytes to splice
             len: u64,
-        ) -> result<tuple<u64, stream-status>>
+        ) -> result<tuple<u64, stream-status>>;
 
         /// Read from one stream and write to another, with blocking.
         ///
@@ -263,7 +263,7 @@ interface streams {
             src: input-stream,
             /// The number of bytes to splice
             len: u64,
-        ) -> result<tuple<u64, stream-status>>
+        ) -> result<tuple<u64, stream-status>>;
 
         /// Forward the entire contents of an input stream to an output stream.
         ///
@@ -280,6 +280,6 @@ interface streams {
         forward: func(
             /// The stream to read from
             src: input-stream
-        ) -> result<tuple<u64, stream-status>>
+        ) -> result<tuple<u64, stream-status>>;
     }
 }
diff --git a/wit/deps/io/world.wit b/wit/deps/io/world.wit
index 8738dba..05244a9 100644
--- a/wit/deps/io/world.wit
+++ b/wit/deps/io/world.wit
@@ -1,6 +1,6 @@
-package wasi:io
+package wasi:io;
 
 world imports {
-    import streams
-    import poll
+    import streams;
+    import poll;
 }
diff --git a/wit/monotonic-clock.wit b/wit/monotonic-clock.wit
index 703a5fb..d9ac7cb 100644
--- a/wit/monotonic-clock.wit
+++ b/wit/monotonic-clock.wit
@@ -9,24 +9,24 @@
 ///
 /// It is intended for measuring elapsed time.
 interface monotonic-clock {
-    use wasi:io/poll.{pollable}
+    use wasi:io/poll.{pollable};
 
     /// A timestamp in nanoseconds.
-    type instant = u64
+    type instant = u64;
 
     /// Read the current value of the clock.
     ///
     /// The clock is monotonic, therefore calling this function repeatedly will
     /// produce a sequence of non-decreasing values.
-    now: func() -> instant
+    now: func() -> instant;
 
     /// Query the resolution of the clock.
-    resolution: func() -> instant
+    resolution: func() -> instant;
 
     /// Create a `pollable` which will resolve once the specified time has been
     /// reached.
     subscribe: func(
         when: instant,
         absolute: bool
-    ) -> pollable
+    ) -> pollable;
 }
diff --git a/wit/timezone.wit b/wit/timezone.wit
index a872bff..e717e7b 100644
--- a/wit/timezone.wit
+++ b/wit/timezone.wit
@@ -1,5 +1,5 @@
 interface timezone {
-    use wall-clock.{datetime}
+    use wall-clock.{datetime};
 
     /// Return information needed to display the given `datetime`. This includes
     /// the UTC offset, the time zone name, and a flag indicating whether
@@ -8,10 +8,10 @@ interface timezone {
     /// If the timezone cannot be determined for the given `datetime`, return a
     /// `timezone-display` for `UTC` with a `utc-offset` of 0 and no daylight
     /// saving time.
-    display: func(when: datetime) -> timezone-display
+    display: func(when: datetime) -> timezone-display;
 
     /// The same as `display`, but only return the UTC offset.
-    utc-offset: func(when: datetime) -> s32
+    utc-offset: func(when: datetime) -> s32;
 
     /// Information useful for displaying the timezone of a specific `datetime`.
     ///
diff --git a/wit/wall-clock.wit b/wit/wall-clock.wit
index dae44a7..c395649 100644
--- a/wit/wall-clock.wit
+++ b/wit/wall-clock.wit
@@ -32,10 +32,10 @@ interface wall-clock {
     ///
     /// [POSIX's Seconds Since the Epoch]: https://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xbd_chap04.html#tag_21_04_16
     /// [Unix Time]: https://en.wikipedia.org/wiki/Unix_time
-    now: func() -> datetime
+    now: func() -> datetime;
 
     /// Query the resolution of the clock.
     ///
     /// The nanoseconds field of the output is always less than 1000000000.
-    resolution: func() -> datetime
+    resolution: func() -> datetime;
 }
diff --git a/wit/world.wit b/wit/world.wit
index 5c2dd41..3295ba8 100644
--- a/wit/world.wit
+++ b/wit/world.wit
@@ -1,7 +1,7 @@
-package wasi:clocks
+package wasi:clocks;
 
 world imports {
-    import monotonic-clock
-    import wall-clock
-    import timezone
+    import monotonic-clock;
+    import wall-clock;
+    import timezone;
 }