diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f1a8344..1999067 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,10 +11,9 @@ on:
 jobs:
   run_tests:
     name: tests
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        os: [ubuntu-24.04]
         python-version: ['3.11', '3.12']
         toxenv: [quality, docs, pii_check, django42]
 
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 7849a75..42c80d8 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -7,7 +7,7 @@ on:
 jobs:
 
   push:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-latest
 
     steps:
       - name: Checkout
diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index 907dea2..d91704b 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -10,5 +10,3 @@
 
 # Common constraints for edx repos
 -c https://raw.githubusercontent.com/edx/edx-lint/master/edx_lint/files/common_constraints.txt
-
-backports.zoneinfo;python_version<"3.9"
diff --git a/requirements/doc.txt b/requirements/doc.txt
index f91bb04..0708279 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -31,7 +31,6 @@ certifi==2024.8.30
 cffi==1.17.1
     # via
     #   -r requirements/test.txt
-    #   cryptography
     #   pynacl
 charset-normalizer==3.3.2
     # via requests
@@ -48,8 +47,6 @@ coverage[toml]==7.6.1
     # via
     #   -r requirements/test.txt
     #   pytest-cov
-cryptography==43.0.1
-    # via secretstorage
 ddt==1.7.2
     # via -r requirements/test.txt
 django==4.2.16
@@ -118,10 +115,6 @@ jaraco-context==6.0.1
     # via keyring
 jaraco-functools==4.0.2
     # via keyring
-jeepney==0.8.0
-    # via
-    #   keyring
-    #   secretstorage
 jinja2==3.1.4
     # via
     #   -r requirements/test.txt
@@ -227,8 +220,6 @@ rfc3986==2.0.0
     # via twine
 rich==13.8.0
     # via twine
-secretstorage==3.3.3
-    # via keyring
 six==1.16.0
     # via
     #   -r requirements/test.txt