diff --git a/setup.py b/setup.py
index eab7bd0..176566d 100644
--- a/setup.py
+++ b/setup.py
@@ -35,6 +35,6 @@
         'pytest>=7.2.2, <9.1.0',
         'coverage>=7.2.2, <7.14.0',
         'pytest-cov>=4.0, <7.2',
-        'testfixtures>=8.3.0, <= 10.0.0'
+        'testfixtures>= 8.3.0, <= 12.2.0'
     ]
 )
diff --git a/test-requirements.txt b/test-requirements.txt
index ea32e8e..da140f2 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
 pytest>=7.2.2, <9.1.0
 pytest-mock~=3.14.0
 coverage>=7.2.2, <7.14.0
-testfixtures>=8.3.0, <= 10.0.0
+testfixtures<= 12.2.0, >= 12.2.0