diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 5654fcf66..13223bc66 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -51,7 +51,9 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.13t"
           - "3.14"
+          - "3.14t"
           - "pypy-3.9"
           - "pypy-3.10"
         exclude:
diff --git a/.github/workflows/python-nightly.yml b/.github/workflows/python-nightly.yml
index 9eab004bc..22642d35e 100644
--- a/.github/workflows/python-nightly.yml
+++ b/.github/workflows/python-nightly.yml
@@ -59,6 +59,7 @@ jobs:
           - "3.12-dev"
           - "3.13-dev"
           - "3.14-dev"
+          - "3.14t-dev"
           # https://github.com/actions/setup-python#available-versions-of-pypy
           - "pypy-3.10-nightly"
         nogil:
diff --git a/.github/workflows/testsuite.yml b/.github/workflows/testsuite.yml
index 92ad7d376..4b3237d41 100644
--- a/.github/workflows/testsuite.yml
+++ b/.github/workflows/testsuite.yml
@@ -51,7 +51,9 @@ jobs:
           - "3.11"
           - "3.12"
           - "3.13"
+          - "3.13t"
           - "3.14"
+          - "3.14t"
           - "pypy-3.9"
           - "pypy-3.10"
           - "pypy-3.11"