diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 52c9acfd..69968de8 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -32,7 +32,7 @@ repos:
     -   id: rst-inline-touching-normal
     -   id: text-unicode-replacement-char
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.11.0
+    rev: v2.12.0
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]
diff --git a/src/_pytask/mark/expression.py b/src/_pytask/mark/expression.py
index e48cfafe..741b4f9b 100644
--- a/src/_pytask/mark/expression.py
+++ b/src/_pytask/mark/expression.py
@@ -102,7 +102,7 @@ def lex(self, input_: str) -> Iterator[Token]:
                 else:
                     raise ParseError(
                         pos + 1,
-                        'unexpected character "{}"'.format(input_[pos]),
+                        f'unexpected character "{input_[pos]}"',
                     )
         yield Token(TokenType.EOF, "", pos)