diff --git a/requirements.txt b/requirements.txt
index 3e416110..a68d9c48 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ attrs==19.1.0
 better-exceptions-fork==0.2.1.post6
 black==19.10b0
 bpylist2==2.0.3
-pycodestyle==2.3.1
+pycodestyle<2.6.0,>=2.5.0
 certifi==2019.3.9
 Click==7.0
 colorama==0.4.1
diff --git a/setup.py b/setup.py
index cc531a30..16f9becb 100755
--- a/setup.py
+++ b/setup.py
@@ -62,7 +62,7 @@ setup(
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],
     install_requires=[
-        "pycodestyle==2.3.1",  # needed by bpylist==2.0.3
+        "pycodestyle<2.6.0,>=2.5.0'",  # needed by bpylist==2.0.3
         "pyobjc>=6.0.1",
         "Click>=7",
         "PyYAML>=5.1.2",