diff --git a/requirements.txt b/requirements.txt
index 89d64c303..c1d2ecf58 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-mkdocs==1.0.4
+mkdocs==1.2.3
 mkdocs-material==4.0.2
diff --git a/sort.py b/sort.py
index 431bd02b4..68682e174 100755
--- a/sort.py
+++ b/sort.py
@@ -23,21 +23,17 @@ def sort_blocks():
     table_of_contents = ''.join(read_me.split('- - -')[0])
     blocks = ''.join(read_me.split('- - -')[1]).split('\n# ')
     for i in range(len(blocks)):
-        if i == 0:
-            blocks[i] = blocks[i] + '\n'
-        else:
-            blocks[i] = '# ' + blocks[i] + '\n'
-
+        blocks[i] = blocks[i] + '\n' if i == 0 else f'# {blocks[i]}' + '\n'
     # Sorting the libraries
     inner_blocks = sorted(blocks[0].split('##'))
     for i in range(1, len(inner_blocks)):
         if inner_blocks[i][0] != '#':
-            inner_blocks[i] = '##' + inner_blocks[i]
+            inner_blocks[i] = f'##{inner_blocks[i]}'
     inner_blocks = ''.join(inner_blocks)
 
     # Replacing the non-sorted libraries by the sorted ones and gathering all at the final_README file
     blocks[0] = inner_blocks
-    final_README = table_of_contents + '- - -' + ''.join(blocks)
+    final_README = f'{table_of_contents}- - -' + ''.join(blocks)
 
     with open('README.md', 'w+') as sorted_file:
         sorted_file.write(final_README)
@@ -57,7 +53,7 @@ def main():
         s_line = line.lstrip()
         indent = len(line) - len(s_line)
 
-        if any([s_line.startswith(s) for s in ['* [', '- [']]):
+        if any(s_line.startswith(s) for s in ['* [', '- [']):
             if indent == last_indent:
                 blocks[-1].append(line)
             else: