diff --git a/.cirrus.yml b/.cirrus.yml
index 3ede535a21f..f82f22bf51d 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -24,14 +24,14 @@ env:
     ####
     #### Cache-image names to test with (double-quotes around names are critical)
     ####
-    FEDORA_NAME: "fedora-42"
+    FEDORA_NAME: "fedora-43"
     FEDORA_AARCH64_NAME: "${FEDORA_NAME}-aarch64"
-    PRIOR_FEDORA_NAME: "fedora-41"
+    PRIOR_FEDORA_NAME: "fedora-42"
     RAWHIDE_NAME: "rawhide"
     DEBIAN_NAME: "debian-14"
 
     # Image identifiers
-    IMAGE_SUFFIX: "c20251120t131229z-f42f41d14"
+    IMAGE_SUFFIX: "c20251121t131714z-f43f42d14"
 
     # EC2 images
     FEDORA_AMI: "fedora-aws-${IMAGE_SUFFIX}"
diff --git a/test/apiv2/python/rest_api/test_v2_0_0_image.py b/test/apiv2/python/rest_api/test_v2_0_0_image.py
index e62b210ebc9..bd37d7a61fd 100644
--- a/test/apiv2/python/rest_api/test_v2_0_0_image.py
+++ b/test/apiv2/python/rest_api/test_v2_0_0_image.py
@@ -1,6 +1,6 @@
 import json
 import unittest
-from multiprocessing import Process
+import multiprocessing as mp
 
 import requests
 from dateutil.parser import parse
@@ -168,9 +168,12 @@ def do_search5():
             self.assertEqual(r.status_code, 400, f"#5: {r.text}")
 
         i = 1
+        # Need to explicitly set start method
+        # # https://docs.python.org/dev/library/multiprocessing.html#contexts-and-start-methods
+        mp.set_start_method('fork')
         for fn in [do_search1, do_search2, do_search3, do_search4, do_search5]:
             with self.subTest(i=i):
-                search = Process(target=fn)
+                search = mp.Process(target=fn)
                 search.start()
                 search.join(timeout=10)
                 self.assertFalse(search.is_alive(), f"#{i} /images/search took too long")
diff --git a/test/system/140-diff.bats b/test/system/140-diff.bats
index ccb2a8c1bba..00ac9bb7532 100644
--- a/test/system/140-diff.bats
+++ b/test/system/140-diff.bats
@@ -38,10 +38,13 @@ load helpers
 }
 
 @test "podman diff with buildah container " {
+
+    env
+    # Unset NOTIFY_SOCKET based on: https://github.com/containers/podman/pull/27514#issuecomment-3529125596
+    unset NOTIFY_SOCKET
     rand_file=$(random_string 10)
     buildah from --name buildahctr $IMAGE
     buildah run buildahctr sh -c "touch /$rand_file;rm /etc/services"
-
     run_podman diff --format json buildahctr
 
     # Expected results for each type of diff