diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 5a8a159e..8a6c6fb7 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -12,7 +12,7 @@ jobs:
       matrix:
         # TODO: fix for Mac and Windows.
         os: [ubuntu-latest]
-        python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", 3.11, 3.12, 3.13, 3.14]
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -69,7 +69,7 @@ jobs:
       - name: Archive Linux build artifacts
         # more details https://docs.github.com/en/actions/using-workflows/storing-workflow-data-as-artifacts
         if: runner.os == 'Linux'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: dist
           path: |
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d4529875..fca627c9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        python-version: [3.9]
+        python-version: ["3.10"]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}
@@ -55,7 +55,7 @@ jobs:
       max-parallel: 3
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.9]
+        python-version: ["3.10", 3.11, 3.12, 3.13, 3.14]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/.github/workflows/versions.yml b/.github/workflows/versions.yml
index d4d952ea..db50e2a9 100644
--- a/.github/workflows/versions.yml
+++ b/.github/workflows/versions.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        python-version: [3.9]
+        python-version: ["3.10"]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}
@@ -54,7 +54,7 @@ jobs:
       matrix:
         # TODO: fix for Mac and Windows.
         os: [ubuntu-latest] 
-        python-version: [ 3.9, "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/third_party/differential-privacy b/third_party/differential-privacy
index e59bbcf8..4af69eb3 160000
--- a/third_party/differential-privacy
+++ b/third_party/differential-privacy
@@ -1 +1 @@
-Subproject commit e59bbcf86a5febcbbe6b2e5ebea37ee52457cf36
+Subproject commit 4af69eb36086386edbc4b78126279848321c4e1c