diff --git a/test/meson.build b/test/meson.build
index c9f0414..8bf7008 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -71,6 +71,11 @@
   'test-cli',
 ]
 
+# allow more time for long running tests
+longtests = {
+  'test-pll-unlock': 2,
+}
+
 foreach tc : testcases
 
   exe = executable(tc.underscorify(),
@@ -81,7 +86,7 @@
     link_with           : test_libs,
   )
 
-  test(tc, exe, env: test_vars)
+  test(tc, exe, env: test_vars, timeout: 30 * longtests.get(tc, 1))
 
 endforeach