diff --git a/docker/api/secret.py b/docker/api/secret.py
index fa4c2ab8..e57952b5 100644
--- a/docker/api/secret.py
+++ b/docker/api/secret.py
@@ -53,7 +53,7 @@ class SecretApiMixin(object):
             Retrieve secret metadata
 
             Args:
-                id (string): Full ID of the secret to remove
+                id (string): Full ID of the secret to inspect
 
             Returns (dict): A dictionary of metadata
 
diff --git a/docker/types/healthcheck.py b/docker/types/healthcheck.py
index 61857c21..9815018d 100644
--- a/docker/types/healthcheck.py
+++ b/docker/types/healthcheck.py
@@ -14,7 +14,7 @@ class Healthcheck(DictType):
                 - Empty list: Inherit healthcheck from parent image
                 - ``["NONE"]``: Disable healthcheck
                 - ``["CMD", args...]``: exec arguments directly.
-                - ``["CMD-SHELL", command]``: RUn command in the system's
+                - ``["CMD-SHELL", command]``: Run command in the system's
                   default shell.
 
                 If a string is provided, it will be used as a ``CMD-SHELL``
@@ -23,9 +23,9 @@ class Healthcheck(DictType):
                 should be 0 or at least 1000000 (1 ms).
             timeout (int): The time to wait before considering the check to
                 have hung. It should be 0 or at least 1000000 (1 ms).
-            retries (integer): The number of consecutive failures needed to
+            retries (int): The number of consecutive failures needed to
                 consider a container as unhealthy.
-            start_period (integer): Start period for the container to
+            start_period (int): Start period for the container to
                 initialize before starting health-retries countdown in
                 nanoseconds. It should be 0 or at least 1000000 (1 ms).
     """
@@ -53,6 +53,8 @@ class Healthcheck(DictType):
 
     @test.setter
     def test(self, value):
+        if isinstance(value, six.string_types):
+            value = ["CMD-SHELL", value]
         self['Test'] = value
 
     @property
diff --git a/docker/version.py b/docker/version.py
index 24731263..25c92501 100644
--- a/docker/version.py
+++ b/docker/version.py
@@ -1,2 +1,2 @@
-version = "4.0.1"
+version = "4.0.2"
 version_info = tuple([int(d) for d in version.split("-")[0].split(".")])
diff --git a/docs/change-log.md b/docs/change-log.md
index 4032249b..b10cfd54 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -1,6 +1,20 @@
 Change log
 ==========
 
+4.0.2
+-----
+
+[List of PRs / issues for this release](https://github.com/docker/docker-py/milestone/62?closed=1)
+
+### Bugfixes
+
+- Unified the way `HealthCheck` is created/configured
+
+### Miscellaneous
+
+- Bumped version of websocket-client
+
+
 4.0.1
 -----
 
diff --git a/requirements.txt b/requirements.txt
index 70f37e20..804a78a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,4 +16,4 @@ pypiwin32==223; sys_platform == 'win32' and python_version >= '3.6'
 requests==2.20.0
 six==1.10.0
 urllib3==1.24.3
-websocket-client==0.40.0
+websocket-client==0.56.0