diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7f0c24e..0210aa9 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -14,6 +14,8 @@ repos:
       - id: detect-private-key
       - id: end-of-file-fixer
       - id: fix-byte-order-marker
+      - id: trailing-whitespace
+        exclude_types: [markdown]
 
   - repo: https://github.com/thlorenz/doctoc
     rev: v2.2.0