diff --git a/lib/Plack/MIME.pm b/lib/Plack/MIME.pm
index f83bf1ad..7dbdbb3d 100644
--- a/lib/Plack/MIME.pm
+++ b/lib/Plack/MIME.pm
@@ -9,6 +9,7 @@ our $MIME_TYPES = {
     ".aif"     => "audio/x-aiff",
     ".aiff"    => "audio/x-aiff",
     ".apk"     => "application/vnd.android.package-archive",
+    ".apng"    => "image/apng",
     ".asc"     => "application/pgp-signature",
     ".asf"     => "video/x-ms-asf",
     ".asm"     => "text/x-asm",
@@ -16,6 +17,7 @@ our $MIME_TYPES = {
     ".atom"    => "application/atom+xml",
     ".au"      => "audio/basic",
     ".avi"     => "video/x-msvideo",
+    ".avif"    => "image/avif",
     ".bat"     => "application/x-msdownload",
     ".bin"     => "application/octet-stream",
     ".bmp"     => "image/bmp",
@@ -25,6 +27,7 @@ our $MIME_TYPES = {
     ".cc"      => "text/x-c",
     ".chm"     => "application/vnd.ms-htmlhelp",
     ".class"   => "application/octet-stream",
+    ".collection" => "font/collection",
     ".com"     => "application/x-msdownload",
     ".conf"    => "text/plain",
     ".cpp"     => "text/x-c",
@@ -45,6 +48,7 @@ our $MIME_TYPES = {
     ".dvi"     => "application/x-dvi",
     ".ear"     => "application/java-archive",
     ".eml"     => "message/rfc822",
+    ".eot"     => "application/vnd.ms-fontobject",
     ".eps"     => "application/postscript",
     ".exe"     => "application/x-msdownload",
     ".f"       => "text/x-fortran",
@@ -69,7 +73,7 @@ our $MIME_TYPES = {
     ".jnlp"    => "application/x-java-jnlp-file",
     ".jpeg"    => "image/jpeg",
     ".jpg"     => "image/jpeg",
-    ".js"      => "application/javascript",
+    ".js"      => "text/javascript",
     ".json"    => "application/json",
     ".log"     => "text/plain",
     ".m3u"     => "audio/x-mpegurl",
@@ -79,6 +83,7 @@ our $MIME_TYPES = {
     ".mathml"  => "application/mathml+xml",
     ".mbox"    => "application/mbox",
     ".mdoc"    => "text/troff",
+    ".md"      => "text/markdown",
     ".me"      => "text/troff",
     ".mid"     => "audio/midi",
     ".midi"    => "audio/midi",
@@ -98,6 +103,7 @@ our $MIME_TYPES = {
     ".odt"     => "application/vnd.oasis.opendocument.text",
     ".ogg"     => "application/ogg",
     ".ogv"     => "video/ogg",
+    ".otf"     => "font/otf",
     ".p"       => "text/x-pascal",
     ".pas"     => "text/x-pascal",
     ".pbm"     => "image/x-portable-bitmap",
@@ -129,6 +135,7 @@ our $MIME_TYPES = {
     ".rtf"     => "application/rtf",
     ".ru"      => "text/x-script.ruby",
     ".s"       => "text/x-asm",
+    ".sfnt"    => "font/sfnt",
     ".sgm"     => "text/sgml",
     ".sgml"    => "text/sgml",
     ".sh"      => "application/x-sh",
@@ -150,6 +157,7 @@ our $MIME_TYPES = {
     ".tiff"    => "image/tiff",
     ".torrent" => "application/x-bittorrent",
     ".tr"      => "text/troff",
+    ".tsv"     => "text/tab-separated-values",
     ".ttf"     => "font/ttf",
     ".txt"     => "text/plain",
     ".vcf"     => "text/x-vcard",
@@ -162,7 +170,8 @@ our $MIME_TYPES = {
     ".wma"     => "audio/x-ms-wma",
     ".wmv"     => "video/x-ms-wmv",
     ".wmx"     => "video/x-ms-wmx",
-    ".woff"    => "application/font-woff",
+    ".woff"    => "font/woff",
+    ".woff2"   => "font/woff2",
     ".wrl"     => "model/vrml",
     ".wsdl"    => "application/wsdl+xml",
     ".xbm"     => "image/x-xbitmap",