diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@
 
 | pandoc    | pandoc-sidenote |
 | ------    | --------------- |
+| 2.11      | 0.22.0, 0.22.1  |
 | 2.9       | 0.20.0          |
 | 2.1, 1.19 | 0.19.0          |
 | 1.18      | 0.9.0           |
@@ -45,6 +46,16 @@
 ```bash
 brew install jez/formulae/pandoc-sidenote
 ```
+
+Side note: I run this command to generate the zip files attached to releases
+that are downloaded by the Homebrew formula:
+
+```
+make
+```
+
+It would be nice to get GitHub Actions set up to build and publish releases
+for each tagged commit automatically.
 
 ### From Source
 
diff --git a/pandoc-sidenote.cabal b/pandoc-sidenote.cabal
--- a/pandoc-sidenote.cabal
+++ b/pandoc-sidenote.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 6dc364e65c31a9cfa4710a50751353bc27d6b9a25404043839d770e41c2f207c
+-- hash: 3254d38cc2ede0c149f9fb2b31e4d3c4e6a8405ceca46977c999a22ebe309b38
 
 name:           pandoc-sidenote
-version:        0.20.0.0
+version:        0.22.1.0
 synopsis:       Convert Pandoc Markdown-style footnotes into sidenotes
 description:    This is a simple Pandoc filter to convert footnotes into a format that can be consumed by Tufte CSS. On the whole, this project weighs in at well under 100 lines of code. Check out SideNote.hs if you're curious how it works.
 category:       CommandLine
@@ -28,22 +28,24 @@
   location: https://github.com/jez/pandoc-sidenote
 
 library
+  exposed-modules:
+      Text.Pandoc.SideNote
+  other-modules:
+      Paths_pandoc_sidenote
   hs-source-dirs:
       src
   ghc-options: -Wall -Wcompat -Wmissing-signatures -funbox-strict-fields
   build-depends:
       base >=4.7 && <5
     , mtl
-    , pandoc-types >=1.20
+    , pandoc-types >=1.22
     , text
-  exposed-modules:
-      Text.Pandoc.SideNote
-  other-modules:
-      Paths_pandoc_sidenote
   default-language: Haskell2010
 
 executable pandoc-sidenote
   main-is: Main.hs
+  other-modules:
+      Paths_pandoc_sidenote
   hs-source-dirs:
       ./
   ghc-options: -Wall -Wcompat -Wmissing-signatures -funbox-strict-fields -threaded -rtsopts -with-rtsopts=-N
@@ -51,8 +53,6 @@
       base >=4.7 && <5
     , mtl
     , pandoc-sidenote
-    , pandoc-types >=1.20
+    , pandoc-types >=1.22
     , text
-  other-modules:
-      Paths_pandoc_sidenote
   default-language: Haskell2010
diff --git a/src/Text/Pandoc/SideNote.hs b/src/Text/Pandoc/SideNote.hs
--- a/src/Text/Pandoc/SideNote.hs
+++ b/src/Text/Pandoc/SideNote.hs
@@ -84,7 +84,7 @@
   let noteTypeCls       = if nonu then "marginnote" else "sidenote"
   let note              = Span (ident, [noteTypeCls], attrs) content'
 
-  return $ Span nullAttr [label, input, note]
+  return $ Span ("", ["sidenote-wrapper"], []) [label, input, note]
 
 filterInline inline = return inline