diff --git a/requirements-dev.txt b/requirements-dev.txt
index 70be33d..d29d273 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 # Optional tooling for tests, browser verification and style gates
 -r requirements.txt
 playwright>=1.45          # browser smoke test + screenshots (python3 -m playwright install chromium)
-pyflakes>=3.2             # static lint used by test_all.sh when available
+pyflakes>=3.4.0             # static lint used by test_all.sh when available
 # JavaScript AST style gate: npm install typescript@5 (see tools/check_style.py)