diff --git a/README.md b/README.md
index 3406d27..cef27f7 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,10 @@
 
 - [x] Check if we have a file
 - [x] Read file
-- []Check if there are errors in file
-- []Transform file into tetriminos
-- []Check if every tetrimino is valid
-- []Backtracking for smallest square
-- []Print result
+- [ ] Check if there are errors in file
+- [ ] Transform file into tetriminos
+- [] Check if every tetrimino is valid
+- [] Backtracking for smallest square
+- [] Print result
 
-- []Transform tetriminos with letters (?)
+- [] Transform tetriminos with letters (?)