diff --git a/compose/service.py b/compose/service.py
index 0aaf3cf37..e989d4877 100644
--- a/compose/service.py
+++ b/compose/service.py
@@ -685,6 +685,7 @@ class Service(object):
             'links': self.get_link_names(),
             'net': self.network_mode.id,
             'networks': self.networks,
+            'secrets': self.secrets,
             'volumes_from': [
                 (v.source.name, v.mode)
                 for v in self.volumes_from if isinstance(v.source, Service)
diff --git a/tests/integration/project_test.py b/tests/integration/project_test.py
index 57f3b7074..fe6ace90e 100644
--- a/tests/integration/project_test.py
+++ b/tests/integration/project_test.py
@@ -1,6 +1,7 @@
 from __future__ import absolute_import
 from __future__ import unicode_literals
 
+import copy
 import json
 import os
 import random
@@ -1496,6 +1497,60 @@ class ProjectTest(DockerClientTestCase):
         output = container.logs()
         assert output == b"This is the secret\n"
 
+    @v3_only()
+    def test_project_up_with_added_secrets(self):
+        node = create_host_file(self.client, os.path.abspath('tests/fixtures/secrets/default'))
+
+        config_input1 = {
+            'version': V3_1,
+            'services': [
+                {
+                    'name': 'web',
+                    'image': 'busybox:latest',
+                    'command': 'cat /run/secrets/special',
+                    'environment': ['constraint:node=={}'.format(node if node is not None else '')]
+                }
+
+            ],
+            'secrets': {
+                'super': {
+                    'file': os.path.abspath('tests/fixtures/secrets/default')
+                }
+            }
+        }
+        config_input2 = copy.deepcopy(config_input1)
+        # Add the secret
+        config_input2['services'][0]['secrets'] = [
+            types.ServiceSecret.parse({'source': 'super', 'target': 'special'})
+        ]
+
+        config_data1 = build_config(**config_input1)
+        config_data2 = build_config(**config_input2)
+
+        # First up with non-secret
+        project = Project.from_config(
+            client=self.client,
+            name='composetest',
+            config_data=config_data1,
+        )
+        project.up()
+
+        # Then up with secret
+        project = Project.from_config(
+            client=self.client,
+            name='composetest',
+            config_data=config_data2,
+        )
+        project.up()
+        project.stop()
+
+        containers = project.containers(stopped=True)
+        assert len(containers) == 1
+        container, = containers
+
+        output = container.logs()
+        assert output == b"This is the secret\n"
+
     @v2_only()
     def test_initialize_volumes_invalid_volume_driver(self):
         vol_name = '{0:x}'.format(random.getrandbits(32))
diff --git a/tests/unit/service_test.py b/tests/unit/service_test.py
index 8b3352fcb..3d7c4987a 100644
--- a/tests/unit/service_test.py
+++ b/tests/unit/service_test.py
@@ -333,7 +333,7 @@ class ServiceTest(unittest.TestCase):
         assert service.options['environment'] == environment
 
         assert opts['labels'][LABEL_CONFIG_HASH] == \
-            '2524a06fcb3d781aa2c981fc40bcfa08013bb318e4273bfa388df22023e6f2aa'
+            '689149e6041a85f6fb4945a2146a497ed43c8a5cbd8991753d875b165f1b4de4'
         assert opts['environment'] == ['also=real']
 
     def test_get_container_create_options_sets_affinity_with_binds(self):
@@ -676,6 +676,7 @@ class ServiceTest(unittest.TestCase):
             'options': {'image': 'example.com/foo'},
             'links': [('one', 'one')],
             'net': 'other',
+            'secrets': [],
             'networks': {'default': None},
             'volumes_from': [('two', 'rw')],
         }
@@ -698,6 +699,7 @@ class ServiceTest(unittest.TestCase):
             'options': {'image': 'example.com/foo'},
             'links': [],
             'networks': {},
+            'secrets': [],
             'net': 'aaabbb',
             'volumes_from': [],
         }