diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b225a693cee52cb544707a8ddc43a6eb9a3e5919..97a8b39610215ffea1361f0b13dd11f70d1a9fbb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,7 +31,7 @@ concurrency:
 env:
   DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
   NODE_VERSION: 22
-  PDM_VERSION: 2.20.1 # renovate: datasource=pypi depName=pdm
+  PDM_VERSION: 2.21.0 # renovate: datasource=pypi depName=pdm
   DRY_RUN: true
   TEST_LEGACY_DECRYPTION: true
   SPARSE_CHECKOUT: |-