diff --git a/README.md b/README.md
index 9976967..bea5076 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ website](https://inko-lang.org/).
 
 ## Requirements
 
-- Inko 0.16.0 or newer
+- Inko 0.17.0 or newer
 
 ## Development
 
diff --git a/inko.pkg b/inko.pkg
index ae5a7c9..6b6c9ce 100644
--- a/inko.pkg
+++ b/inko.pkg
@@ -1,5 +1,5 @@
-require https://github.com/yorickpeterse/inko-wobsite 0.18.0 0059ab6b2eec4b72d2b94025733ec464688d2d02
+require https://github.com/yorickpeterse/inko-wobsite 0.19.0 fa5e47733423aa6a902028e69de5a374a1757377
 require https://github.com/yorickpeterse/inko-builder 0.13.0 7a38803e1fcd80e19ad2ea8fd90b9babf70e93a6
-require https://github.com/yorickpeterse/inko-markdown 0.20.1 3fd768dc4c2ffdb310fe5190fdb7c2de5760317d
-require https://github.com/yorickpeterse/inko-syntax 0.11.0 6ce493b98401f41771000ed05cd16dcee454aaba
-require inko 0.16.0
+require https://github.com/yorickpeterse/inko-markdown 0.21.0 3726c10b499242cb3febc931a82e35217e2f987a
+require https://github.com/yorickpeterse/inko-syntax 0.12.0 517256f97795fea9cab8d188aa2afef2dbe50685
+require inko 0.17.0
diff --git a/src/site/cli/news.inko b/src/site/cli/news.inko
index b6bf31e..b4b1c95 100644
--- a/src/site/cli/news.inko
+++ b/src/site/cli/news.inko
@@ -2,7 +2,6 @@ import std.env
 import std.fs.file (WriteOnlyFile)
 import std.fs.path (Path)
 import std.json (Json)
-import std.stdio (STDOUT)
 import std.time (DateTime)
 import wobsite.time (iso_date)
 import wobsite.url
diff --git a/src/site/cli/packages.inko b/src/site/cli/packages.inko
index e9e1f98..151df9d 100644
--- a/src/site/cli/packages.inko
+++ b/src/site/cli/packages.inko
@@ -1,12 +1,9 @@
 import site.github
 import std.env
-import std.fmt (fmt)
 import std.fs.file (ReadOnlyFile, WriteOnlyFile)
 import std.fs.path (Path)
 import std.int (Format)
-import std.io (Error)
 import std.json (Json)
-import std.stdio (STDOUT)
 
 let ENV = 'GITHUB_TOKEN'
 let QUERY = '
diff --git a/src/site/github.inko b/src/site/github.inko
index cdb04f0..11cfc5d 100644
--- a/src/site/github.inko
+++ b/src/site/github.inko
@@ -35,7 +35,7 @@ fn get(
 
   root.set('query', Json.String(query))
   root.set('variables', Json.Object(vars))
-  cmd.arguments(
+  cmd.arguments.append(
     [
       '-H',
       'Content-Type: application/json',
@@ -49,9 +49,9 @@ fn get(
     ],
   )
 
-  cmd.stdin(Stream.Null)
-  cmd.stdout(Stream.Piped)
-  cmd.stderr(Stream.Null)
+  cmd.stdin = Stream.Null
+  cmd.stdout = Stream.Piped
+  cmd.stderr = Stream.Null
 
   let child = try cmd.spawn.map_error(fn (e) {
     Error.InvalidCommand(e.to_string)
@@ -68,6 +68,8 @@ fn get(
 
   let stdout = ByteArray.new
 
-  try child.stdout.read_all(stdout).map_error(fn (e) { Error.InvalidRead(e) })
+  try child.stdout.as_mut.get.read_all(stdout).map_error(fn (e) {
+    Error.InvalidRead(e)
+  })
   Json.parse(stdout).map_error(fn (e) { Error.InvalidJson(e) })
 }
diff --git a/src/site/layouts.inko b/src/site/layouts.inko
index e4d8405..689586f 100644
--- a/src/site/layouts.inko
+++ b/src/site/layouts.inko
@@ -4,8 +4,6 @@ import markdown.html (Filter, TableOfContents)
 import site.examples (Example)
 import site.packages (Package)
 import site.sponsors (CorporateSponsor, Sponsor)
-import std.fs.file (ReadOnlyFile)
-import std.io (BufferedReader)
 import wobsite (Files, Page)
 import wobsite.markdown (Admonitions, SyntaxHighlight)
 import wobsite.time (human_readable_date, iso_date)
diff --git a/src/site/packages.inko b/src/site/packages.inko
index d45318b..7cd870c 100644
--- a/src/site/packages.inko
+++ b/src/site/packages.inko
@@ -1,11 +1,8 @@
 import std.fs.file (ReadOnlyFile)
 import std.fs.path (Path)
-import std.int (Format)
 import std.io (Error)
 import std.json (Json)
 import std.string (ToString)
-import std.time (DateTime)
-import wobsite.time (parse_date)
 
 fn string(value: ref Json, key: String) -> Result[String, ParseError] {
   match value.query.key(key).as_string {