diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9efb620e..bf6b1063 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
         with:
           cache: true
           python-version: ${{ matrix.python-version }}
-          version: 2.19.3
+          version: 2.20.1
       - run: env | sort
       - run: make prerequisites
       - run: make dev
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index fa1d0e54..ba680851 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -22,7 +22,7 @@ jobs:
         with:
           cache: true
           python-version: '3.12'
-          version: 2.19.3
+          version: 2.20.1
       - run: env | sort
       - run: make dev-doc
       - run: make doc
@@ -123,7 +123,7 @@ jobs:
         with:
           cache: true
           python-version: '3.12'
-          version: 2.19.3
+          version: 2.20.1
       - run: env | sort
       - env:
           PDM_PUBLISH_PASSWORD: ${{ secrets.PDM_PUBLISH_PASSWORD }}
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 9b318b55..d67703f4 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -22,7 +22,7 @@ build:
     post_system_dependencies:
       - env | sort
     pre_create_environment:
-      - PIPX_BIN_DIR=$READTHEDOCS_VIRTUALENV_PATH/bin pipx install pdm==2.19.3
+      - PIPX_BIN_DIR=$READTHEDOCS_VIRTUALENV_PATH/bin pipx install pdm==2.20.1
     post_install:
       - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH make dev-doc
     post_build:
diff --git a/.renovaterc.json b/.renovaterc.json
index d720fede..0bdf670b 100644
--- a/.renovaterc.json
+++ b/.renovaterc.json
@@ -1,7 +1,7 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
     "constraints": {
-        "pdm": "2.19.3",
+        "pdm": "2.20.1",
         "python": "==3.12"
     },
     "customManagers": [
diff --git a/Makefile b/Makefile
index 54dec9fd..f00fc260 100644
--- a/Makefile
+++ b/Makefile
@@ -57,7 +57,7 @@ dev:
 # Install standalone tools
 prerequisites:
 	pipx install --force codespell[toml]==2.3.0
-	pipx install --force pdm==2.19.3
+	pipx install --force pdm==2.20.1
 	pipx install --force pre-commit==4.0.1
 	pipx install --force pyproject-fmt==2.5.0
 	pipx install --force ruff==0.7.2
diff --git a/template/.readthedocs.yaml.jinja b/template/.readthedocs.yaml.jinja
index 472edbf2..93971ffc 100644
--- a/template/.readthedocs.yaml.jinja
+++ b/template/.readthedocs.yaml.jinja
@@ -22,7 +22,7 @@ build:
     post_system_dependencies:
       - env | sort
     pre_create_environment:
-      - PIPX_BIN_DIR=$READTHEDOCS_VIRTUALENV_PATH/bin pipx install pdm==2.19.3
+      - PIPX_BIN_DIR=$READTHEDOCS_VIRTUALENV_PATH/bin pipx install pdm==2.20.1
     post_install:
       - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH make dev-doc
     post_build:
diff --git a/template/.renovaterc.json.jinja b/template/.renovaterc.json.jinja
index 617dcdcf..4d13ca99 100644
--- a/template/.renovaterc.json.jinja
+++ b/template/.renovaterc.json.jinja
@@ -2,7 +2,7 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
     "constraints": {
-        "pdm": "2.19.3",
+        "pdm": "2.20.1",
         "python": "=={{ default_py }}"
     },
     "customManagers": [
diff --git a/template/Makefile.jinja b/template/Makefile.jinja
index 056c435b..b824ac27 100644
--- a/template/Makefile.jinja
+++ b/template/Makefile.jinja
@@ -59,7 +59,7 @@ dev:
 # Install standalone tools
 prerequisites:
 	pipx install --force codespell[toml]==2.3.0
-	pipx install --force pdm==2.19.3
+	pipx install --force pdm==2.20.1
 	pipx install --force pre-commit==4.0.1
 	pipx install --force pyproject-fmt==2.5.0
 	pipx install --force ruff==0.7.2
diff --git a/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/ci.yml.jinja b/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/ci.yml.jinja
index e354f9f9..72f1dddb 100644
--- a/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/ci.yml.jinja	
+++ b/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/ci.yml.jinja	
@@ -25,7 +25,7 @@ jobs:
         with:
           cache: true
           python-version: {{ '${{ matrix.python-version }}' }}
-          version: 2.19.3
+          version: 2.20.1
       - run: env | sort
       - run: make prerequisites
       - run: make dev
diff --git a/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/release.yml.jinja b/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/release.yml.jinja
index 5a064f9e..770f388c 100644
--- a/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/release.yml.jinja	
+++ b/template/[% if repo_platform == 'github' %].github[% endif %]/workflows/release.yml.jinja	
@@ -23,7 +23,7 @@ jobs:
         with:
           cache: true
           python-version: '{{ default_py }}'
-          version: 2.19.3
+          version: 2.20.1
       - run: env | sort
       - run: make dev-doc
       - run: make doc
@@ -134,7 +134,7 @@ jobs:
         with:
           cache: true
           python-version: '{{ default_py }}'
-          version: 2.19.3
+          version: 2.20.1
       - run: env | sort
       - env:
           PDM_PUBLISH_PASSWORD: {{ '${{ secrets.PDM_PUBLISH_PASSWORD }}' }}