diff --git a/.hhconfig b/.hhconfig
index afb06b5..fa1a553 100644
--- a/.hhconfig
+++ b/.hhconfig
@@ -1,4 +1,5 @@
 assume_php=false
+disable_static_local_variables = true
 ignored_paths = [ "vendor/.+/tests/.+" ]
 disallow_elvis_space=true
 disallow_non_arraykey_keys=true
diff --git a/composer.lock b/composer.lock
index e86fa42..cdfe506 100644
--- a/composer.lock
+++ b/composer.lock
@@ -153,16 +153,16 @@
         },
         {
             "name": "facebook/hh-clilib",
-            "version": "v2.1.0",
+            "version": "v2.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/hhvm/hh-clilib.git",
-                "reference": "44f30c1f07b9d36430bfff721a119a0d43b15edd"
+                "reference": "9d6b1a8686951da24ab68ffeba25ae85d1788408"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/hhvm/hh-clilib/zipball/44f30c1f07b9d36430bfff721a119a0d43b15edd",
-                "reference": "44f30c1f07b9d36430bfff721a119a0d43b15edd",
+                "url": "https://api.github.com/repos/hhvm/hh-clilib/zipball/9d6b1a8686951da24ab68ffeba25ae85d1788408",
+                "reference": "9d6b1a8686951da24ab68ffeba25ae85d1788408",
                 "shasum": ""
             },
             "require": {
@@ -173,7 +173,7 @@
             "require-dev": {
                 "facebook/fbexpect": "^2.1.0",
                 "hhvm/hacktest": "^1.0.0",
-                "hhvm/hhast": "^4.0"
+                "hhvm/hhast": "^4.0.2"
             },
             "type": "library",
             "extra": {
@@ -185,7 +185,7 @@
             "license": [
                 "MIT"
             ],
-            "time": "2019-02-12T20:14:07+00:00"
+            "time": "2019-03-26T18:31:27+00:00"
         },
         {
             "name": "hhvm/hacktest",
@@ -274,16 +274,16 @@
         },
         {
             "name": "hhvm/hhvm-autoload",
-            "version": "v2.0.5",
+            "version": "v2.0.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/hhvm/hhvm-autoload.git",
-                "reference": "dbd50d7fb1856d1f6757e10bc30eb2bf5d17b3f1"
+                "reference": "4f510960e71adcad661c33ae355d0d9670d9c805"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/hhvm/hhvm-autoload/zipball/dbd50d7fb1856d1f6757e10bc30eb2bf5d17b3f1",
-                "reference": "dbd50d7fb1856d1f6757e10bc30eb2bf5d17b3f1",
+                "url": "https://api.github.com/repos/hhvm/hhvm-autoload/zipball/4f510960e71adcad661c33ae355d0d9670d9c805",
+                "reference": "4f510960e71adcad661c33ae355d0d9670d9c805",
                 "shasum": ""
             },
             "require": {
@@ -317,7 +317,7 @@
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
-            "time": "2019-03-22T21:27:20+00:00"
+            "time": "2019-03-26T17:57:44+00:00"
         },
         {
             "name": "hhvm/hsl-experimental",
diff --git a/src/render/MarkdownRenderer.php b/src/render/MarkdownRenderer.php
index 15d5f27..e73bc03 100644
--- a/src/render/MarkdownRenderer.php
+++ b/src/render/MarkdownRenderer.php
@@ -107,11 +107,7 @@ protected function renderLinkReferenceDefinition(
     // reference definitions when constructing the AST; keeping them in case
     // this is mixed with other markdown, or if we end up creating a separate
     // ReferenceLink AST node that renderers need to deal with.
-    $md = \sprintf(
-      '[%s]: <%s>',
-      $def->getLabel(),
-      $def->getDestination(),
-    );
+    $md = \sprintf('[%s]: <%s>', $def->getLabel(), $def->getDestination());
     $title = $def->getTitle();
     if ($title === null) {
       return $md;
@@ -171,23 +167,23 @@ protected function renderListItem(
 
     if ($list->isLoose()) {
       $content = $item->getChildren()
-       |> $this->renderNodes($$)
-       |> $$."\n";
+        |> $this->renderNodes($$)
+        |> $$."\n";
     } else {
       $content = $item->getChildren()
         |> Vec\map(
           $$,
           $child ==> {
-          if ($child instanceof Blocks\Paragraph) {
-            return $this->renderNodes($child->getContents());
-          }
-          if ($child instanceof Blocks\Block) {
-            return Str\trim($this->render($child));
-          }
-          return $this->render($child);
-        },
-      )
-      |> Str\join($$, "\n");
+            if ($child instanceof Blocks\Paragraph) {
+              return $this->renderNodes($child->getContents());
+            }
+            if ($child instanceof Blocks\Block) {
+              return Str\trim($this->render($child));
+            }
+            return $this->render($child);
+          },
+        )
+        |> Str\join($$, "\n");
     }
     return $content
       |> Str\split($$, "\n")
@@ -200,12 +196,16 @@ protected function renderListItem(
       |> $sep.$$;
   }
 
+  private int $numberOfLists = 0;
+
   <<__Override>>
   protected function renderListOfItems(Blocks\ListOfItems $node): string {
-    static $list_count = 0;
-    ++$list_count;
+    ++$this->numberOfLists;
     return $node->getItems()
-      |> Vec\map($$, $item ==> $this->renderListItem($list_count, $node, $item))
+      |> Vec\map(
+        $$,
+        $item ==> $this->renderListItem($this->numberOfLists, $node, $item),
+      )
       |> Str\join($$, "\n");
   }
 
@@ -322,7 +322,7 @@ protected function renderInlineWithPlainTextContent(
   <<__Override>>
   protected function renderCodeSpan(Inlines\CodeSpan $node): string {
     $code = $node->getCode();
-    $len = Str\length((string) $this->outContext) + Str\length($code);
+    $len = Str\length((string)$this->outContext) + Str\length($code);
 
     $sep = '`';
     for ($sep_len = 1; $sep_len <= $len + 1; ++$sep_len) {
@@ -330,7 +330,7 @@ protected function renderCodeSpan(Inlines\CodeSpan $node): string {
       if (Str\contains($code, $sep)) {
         continue;
       }
-      if (Str\contains((string) $this->outContext, $sep)) {
+      if (Str\contains((string)$this->outContext, $sep)) {
         continue;
       }
       break;
@@ -399,7 +399,9 @@ protected function renderSoftLineBreak(): string {
   }
 
   <<__Override>>
-  protected function renderStrikethroughExtension(Inlines\StrikethroughExtension $node): string {
+  protected function renderStrikethroughExtension(
+    Inlines\StrikethroughExtension $node,
+  ): string {
     $children = $node->getChildren()
       |> Vec\map($$, $child ==> $this->render($child))
       |> Str\join($$, '');