diff --git a/libnm-core/tests/meson.build b/libnm-core/tests/meson.build
index b941107432..7d772c80ce 100644
--- a/libnm-core/tests/meson.build
+++ b/libnm-core/tests/meson.build
@@ -47,5 +47,6 @@ foreach test_unit: test_units
     'libnm-core/' + test_unit,
     test_script,
     args: test_args + [exe.full_path()],
+    timeout: default_test_timeout,
   )
 endforeach
diff --git a/meson.build b/meson.build
index 19926aeb12..b0dc801b98 100644
--- a/meson.build
+++ b/meson.build
@@ -98,6 +98,8 @@ set_defines = [
   ['VERSION', nm_version],
 ]
 
+default_test_timeout = 90
+
 foreach define: set_defines
   config_h.set_quoted(define[0], define[1])
 endforeach
diff --git a/src/devices/tests/meson.build b/src/devices/tests/meson.build
index 11f35a0572..4702c656fc 100644
--- a/src/devices/tests/meson.build
+++ b/src/devices/tests/meson.build
@@ -14,5 +14,6 @@ foreach test_unit: test_units
     'devices/' + test_unit,
     test_script,
     args: test_args + [exe.full_path()],
+    timeout: default_test_timeout,
   )
 endforeach
diff --git a/src/devices/wifi/tests/meson.build b/src/devices/wifi/tests/meson.build
index ee60f3492e..895853c4c0 100644
--- a/src/devices/wifi/tests/meson.build
+++ b/src/devices/wifi/tests/meson.build
@@ -10,4 +10,5 @@ test(
   'devices/wifi/' + test_unit,
   test_script,
   args: test_args + [exe.full_path()],
+  timeout: default_test_timeout,
 )
diff --git a/src/dhcp/tests/meson.build b/src/dhcp/tests/meson.build
index d2de4dc4f6..43b33951ca 100644
--- a/src/dhcp/tests/meson.build
+++ b/src/dhcp/tests/meson.build
@@ -14,5 +14,6 @@ foreach test_unit: test_units
     'dhcp/' + test_unit,
     test_script,
     args: test_args + [exe.full_path()],
+    timeout: default_test_timeout,
   )
 endforeach
diff --git a/src/ndisc/tests/meson.build b/src/ndisc/tests/meson.build
index 0395e40616..99cf664e83 100644
--- a/src/ndisc/tests/meson.build
+++ b/src/ndisc/tests/meson.build
@@ -10,6 +10,7 @@ test(
   'ndisc/' + test_unit,
   test_script,
   args: test_args + [exe.full_path()],
+  timeout: default_test_timeout,
 )
 
 test = 'test-ndisc-linux'
diff --git a/src/platform/tests/meson.build b/src/platform/tests/meson.build
index 7546fb4540..8086a46c9b 100644
--- a/src/platform/tests/meson.build
+++ b/src/platform/tests/meson.build
@@ -1,14 +1,14 @@
 test_units = [
-  ['test-link-fake',     'test-link.c',       test_nm_dep_fake,  30],
-  ['test-link-linux',    'test-link.c',       test_nm_dep_linux, 300],
-  ['test-address-fake',  'test-address.c',    test_nm_dep_fake,  30],
-  ['test-address-linux', 'test-address.c',    test_nm_dep_linux, 30],
-  ['test-general',       'test-general.c',    test_nm_dep,       30],
-  ['test-nmp-object',    'test-nmp-object.c', test_nm_dep,       30],
-  ['test-route-fake',    'test-route.c',      test_nm_dep_fake,  30],
-  ['test-route-linux',   'test-route.c',      test_nm_dep_linux, 30],
-  ['test-cleanup-fake',  'test-cleanup.c',    test_nm_dep_fake,  30],
-  ['test-cleanup-linux', 'test-cleanup.c',    test_nm_dep_linux, 30],
+  ['test-link-fake',     'test-link.c',       test_nm_dep_fake,  default_test_timeout],
+  ['test-link-linux',    'test-link.c',       test_nm_dep_linux, 900],
+  ['test-address-fake',  'test-address.c',    test_nm_dep_fake,  default_test_timeout],
+  ['test-address-linux', 'test-address.c',    test_nm_dep_linux, default_test_timeout],
+  ['test-general',       'test-general.c',    test_nm_dep,       default_test_timeout],
+  ['test-nmp-object',    'test-nmp-object.c', test_nm_dep,       default_test_timeout],
+  ['test-route-fake',    'test-route.c',      test_nm_dep_fake,  default_test_timeout],
+  ['test-route-linux',   'test-route.c',      test_nm_dep_linux, default_test_timeout],
+  ['test-cleanup-fake',  'test-cleanup.c',    test_nm_dep_fake,  default_test_timeout],
+  ['test-cleanup-linux', 'test-cleanup.c',    test_nm_dep_linux, default_test_timeout],
 ]
 
 foreach test_unit: test_units
diff --git a/src/settings/plugins/keyfile/tests/meson.build b/src/settings/plugins/keyfile/tests/meson.build
index 4253fe3cb8..752b6d7bd1 100644
--- a/src/settings/plugins/keyfile/tests/meson.build
+++ b/src/settings/plugins/keyfile/tests/meson.build
@@ -12,4 +12,5 @@ test(
   'keyfile/' + test_unit,
   test_script,
   args: test_args + [exe.full_path()],
+  timeout: default_test_timeout,
 )
diff --git a/src/supplicant/tests/meson.build b/src/supplicant/tests/meson.build
index 7cc9d6af4a..fbccb3134c 100644
--- a/src/supplicant/tests/meson.build
+++ b/src/supplicant/tests/meson.build
@@ -10,4 +10,5 @@ test(
   'supplicant/' + test_unit,
   test_script,
   args: test_args + [exe.full_path()],
+  timeout: default_test_timeout,
 )
diff --git a/src/tests/config/meson.build b/src/tests/config/meson.build
index dc0a022cf4..f65f90bb80 100644
--- a/src/tests/config/meson.build
+++ b/src/tests/config/meson.build
@@ -17,4 +17,5 @@ test(
   'config/' + test_unit,
   test_script,
   args: test_args + [exe.full_path()],
+  timeout: default_test_timeout,
 )
diff --git a/src/tests/meson.build b/src/tests/meson.build
index 9c51e8d423..153128f237 100644
--- a/src/tests/meson.build
+++ b/src/tests/meson.build
@@ -21,6 +21,7 @@ foreach test_unit: test_units
     'src/' + test_unit,
     test_script,
     args: test_args + [exe.full_path()],
+    timeout: default_test_timeout,
   )
 endforeach