diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,18 @@
 Changelog
 =========
 
+Version 0.1.1.0
+---------------
+
+*November 28, 2020*
+
+<https://github.com/mstksg/advent-of-code-ocr/releases/tag/v0.1.1.0>
+
+*   Added O and I letterforms for small font (`rawLetterforms1`), thanks to
+    [r/TheShallowOne][]!
+
+    [r/TheShallowOne]: https://www.reddit.com/r/adventofcode/comments/k0lzz6/adventofcodeocr_command_line_utilityhaskell/gdwwu39
+
 Version 0.1.0.0
 ---------------
 
diff --git a/advent-of-code-ocr.cabal b/advent-of-code-ocr.cabal
--- a/advent-of-code-ocr.cabal
+++ b/advent-of-code-ocr.cabal
@@ -1,13 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.33.0.
+-- This file has been generated from package.yaml by hpack version 0.34.2.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 0805d230cfe0698678c80d553c5e6fddf779fa9b6dc4a8ce5afee7dd03dd3c74
+-- hash: c9fca577a0ca10ba5ac99d9aec0bea19ffae6b6eb6dea3a2be3d569991f6cfbe
 
 name:           advent-of-code-ocr
-version:        0.1.0.0
+version:        0.1.1.0
 synopsis:       Parse Advent of Code ASCII art letters
 description:    "OCR" letter recognition for <https://adventofcode.com Advent of Code>
                 puzzles, compatible with all puzzles from 2015 to 2019.  Also comes with a
diff --git a/src/Advent/OCR/LetterMap.hs b/src/Advent/OCR/LetterMap.hs
--- a/src/Advent/OCR/LetterMap.hs
+++ b/src/Advent/OCR/LetterMap.hs
@@ -207,13 +207,13 @@
 --
 -- Load using @uncurry 'parseLetterMap'@.
 rawLetterforms1 :: (String, String)
-rawLetterforms1 = ("ABCEFGHJKLPRUYZ", drop 1 [here|
-.##..###...##..####.####..##..#..#...##.#..#.#....###..###..#..#.#...#.####
-#..#.#..#.#..#.#....#....#..#.#..#....#.#.#..#....#..#.#..#.#..#.#...#....#
-#..#.###..#....###..###..#....####....#.##...#....#..#.#..#.#..#..#.#....#.
-####.#..#.#....#....#....#.##.#..#....#.#.#..#....###..###..#..#...#....#..
-#..#.#..#.#..#.#....#....#..#.#..#.#..#.#.#..#....#....#.#..#..#...#...#...
-#..#.###...##..####.#.....###.#..#..##..#..#.####.#....#..#..##....#...####
+rawLetterforms1 = ("ABCEFGHIJKLOPRUYZ", drop 1 [here|
+.##..###...##..####.####..##..#..#.###...##.#..#.#.....##..###..###..#..#.#...#.####
+#..#.#..#.#..#.#....#....#..#.#..#..#.....#.#.#..#....#..#.#..#.#..#.#..#.#...#....#
+#..#.###..#....###..###..#....####..#.....#.##...#....#..#.#..#.#..#.#..#..#.#....#.
+####.#..#.#....#....#....#.##.#..#..#.....#.#.#..#....#..#.###..###..#..#...#....#..
+#..#.#..#.#..#.#....#....#..#.#..#..#..#..#.#.#..#....#..#.#....#.#..#..#...#...#...
+#..#.###...##..####.#.....###.#..#.###..##..#..#.####..##..#....#..#..##....#...####
 |])
 
 -- | Based on
