diff --git a/plugins/Fediverse/test.py b/plugins/Fediverse/test.py
index f5cfaa690..d8dd1ca31 100644
--- a/plugins/Fediverse/test.py
+++ b/plugins/Fediverse/test.py
@@ -100,7 +100,7 @@ class NetworkedFediverseTestCase(BaseFediverseTestCase):
 
 
 class NetworklessFediverseTestCase(BaseFediverseTestCase):
-    timeout = 0.5
+    timeout = 1.
 
     @contextlib.contextmanager
     def mockWebfingerSupport(self, value):
diff --git a/plugins/String/test.py b/plugins/String/test.py
index 0bf5d4cb3..c644dcf59 100644
--- a/plugins/String/test.py
+++ b/plugins/String/test.py
@@ -77,6 +77,11 @@ def group(seq, groupSize, noneFill=True):
 
 class StringTestCase(PluginTestCase):
     plugins = ('String', 'Format', 'Status')
+
+    config = {
+        'plugins.String.re.timeout': '2'  # flaky on busy CIs otherwise
+    }
+
     def testLen(self):
         self.assertResponse('len foo', '3')
         self.assertHelp('len')