diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ae73842..0e7c666 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -35,18 +35,18 @@ repos:
     - id: bind-requirements
 
  - repo: https://github.com/domdfcoding/flake8-dunder-all
-   rev: v0.1.0
+   rev: v0.1.3
    hooks:
     - id: ensure-dunder-all
       files: ^coverage_pyver_pragma/.*\.py$
 
  - repo: https://github.com/pre-commit/pygrep-hooks
-   rev: v1.5.1
+   rev: v1.7.0
    hooks:
     - id: python-no-eval
 
  - repo: https://github.com/asottile/pyupgrade
-   rev: v2.7.3
+   rev: v2.7.4
    hooks:
     - id: pyupgrade
       args:
diff --git a/tests/test_regex.py b/tests/test_regex.py
index 2e1c778..dd51012 100644
--- a/tests/test_regex.py
+++ b/tests/test_regex.py
@@ -21,7 +21,7 @@ def test_not_version_regex():
 		for pragma_string in ["pragma", "PRAGMA"]:
 			for post_pragma_space in ['', ':', ": ", ":\t", "  "]:
 				for no_string in ["no", "NO"]:
-					for post_no_space in ['', ' ', "\t", "  "]:
+					for post_no_space in ['', ' ', '\t', "  "]:
 						for cover_string in ["cover", "COVER"]:
 							for post_cover_space in [' ']:
 								# ['', ' ', "\t", "  "]:  # TODO: This regex is picky about the space here
@@ -41,7 +41,7 @@ def test_not_version_regex():
 		for pragma_string in ["pragma", "PRAGMA"]:
 			for post_pragma_space in ['', ':', ": ", ":\t", "  "]:
 				for no_string in ["no", "NO"]:
-					for post_no_space in ['', ' ', "\t", "  "]:
+					for post_no_space in ['', ' ', '\t', "  "]:
 						for cover_string in ["cover", "COVER"]:
 							for post_cover_space in [' ']:
 								# ['', ' ', "\t", "  "]:  # TODO: This regex is picky about the space here
@@ -60,7 +60,7 @@ def test_not_version_regex():
 		for pragma_string in ["pragma", "PRAGMA"]:
 			for post_pragma_space in ['', ':', ": ", ":\t", "  "]:
 				for no_string in ["no", "NO"]:
-					for post_no_space in ['', ' ', "\t", "  "]:
+					for post_no_space in ['', ' ', '\t', "  "]:
 						for cover_string in ["cover", "COVER"]:
 							for post_cover_space in ['']:
 								for post_cover_text in ['']: