diff --git a/pyproject.toml b/pyproject.toml
index 1103b479..b02377be 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -91,7 +91,7 @@ dev = [
   "types-redis>=4.6.0.20241004",
   "pytest-xdist>=3.8.0",
   "types-markdown>=3.10.2.20260712",
-  "zizmor==1.29.0",                                   # Keep in sync with .github/workflows/zizmor.yml.
+  "zizmor==1.31.1",                                   # Keep in sync with .github/workflows/zizmor.yml.
 ]
 
 [tool.uv.sources]