diff --git a/.github/workflows/lsst-tests-ngmix-upstream.yml b/.github/workflows/lsst-tests-ngmix-upstream.yml
index 397e2899..52d040cd 100644
--- a/.github/workflows/lsst-tests-ngmix-upstream.yml
+++ b/.github/workflows/lsst-tests-ngmix-upstream.yml
@@ -15,7 +15,7 @@ jobs:
     name: lsst-tests-ngmix-upstream
     strategy:
       matrix:
-        pyver: ["3.12"]
+        pyver: ["3.13"]
 
     runs-on: "ubuntu-latest"
 
diff --git a/.github/workflows/lsst-tests.yml b/.github/workflows/lsst-tests.yml
index 3fd12521..4096b4fc 100644
--- a/.github/workflows/lsst-tests.yml
+++ b/.github/workflows/lsst-tests.yml
@@ -16,7 +16,7 @@ jobs:
     name: lsst-tests
     strategy:
       matrix:
-        pyver: ["3.12"]
+        pyver: ["3.13"]
 
     runs-on: "ubuntu-latest"
 
diff --git a/.github/workflows/shear_test.yml b/.github/workflows/shear_test.yml
index 3d34af82..3144f86d 100644
--- a/.github/workflows/shear_test.yml
+++ b/.github/workflows/shear_test.yml
@@ -13,7 +13,7 @@ jobs:
     name: shear-tests
     strategy:
       matrix:
-        pyver: ["3.12"]
+        pyver: ["3.13"]
 
     runs-on: "ubuntu-latest"
 
diff --git a/.github/workflows/tests-ngmix-upstream.yml b/.github/workflows/tests-ngmix-upstream.yml
index 033dfdee..e52a7de5 100644
--- a/.github/workflows/tests-ngmix-upstream.yml
+++ b/.github/workflows/tests-ngmix-upstream.yml
@@ -13,7 +13,7 @@ jobs:
     name: tests-ngmix-upstream
     strategy:
       matrix:
-        pyver: ["3.9", "3.10", "3.11", "3.12"]
+        pyver: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     runs-on: "ubuntu-latest"
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 902d367b..5cb74e2e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
     name: tests
     strategy:
       matrix:
-        pyver: ["3.9", "3.10", "3.11", "3.12"]
+        pyver: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     runs-on: "ubuntu-latest"
 
diff --git a/metadetect/lsst/tests/test_lsst_metacal_exposures.py b/metadetect/lsst/tests/test_lsst_metacal_exposures.py
index 749d8944..61a59d42 100644
--- a/metadetect/lsst/tests/test_lsst_metacal_exposures.py
+++ b/metadetect/lsst/tests/test_lsst_metacal_exposures.py
@@ -26,7 +26,7 @@ def test_metacal_exps(ntrial=10, show=False):
     from descwl_shear_sims.sim import make_sim
     from descwl_shear_sims.psfs import make_fixed_psf
 
-    seed = None
+    seed = 20251117
     dim = 250
     buff = 50
 
@@ -122,7 +122,7 @@ def test_metacal_mbexp(ntrial=10, show=False):
     from descwl_shear_sims.sim import make_sim
     from descwl_shear_sims.psfs import make_fixed_psf
 
-    seed = None
+    seed = 20251117
     dim = 250
     buff = 50
     bands = ['r', 'i']