diff --git a/CHANGELOG.md b/CHANGELOG.md
index 38ad8f7a3547..0fc3061f4693 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,62 @@
 # Changelog
 
+
+## master
+
+\<TBD>
+
+### Thanks
+
+Thanks to the following projects which we fully rely on to provide some of
+our features:
+- [isort](https://pypi.org/project/isort/)
+- [jedi](https://pypi.org/project/jedi/)
+  and [parso](https://pypi.org/project/parso/)
+- [Microsoft Python Language Server](https://github.com/microsoft/python-language-server)
+- [ptvsd](https://pypi.org/project/ptvsd/)
+- [exuberant ctags](http://ctags.sourceforge.net/) (user-installed)
+- [rope](https://pypi.org/project/rope/) (user-installed)
+
+Also thanks to the various projects we provide integrations with which help
+make this extension useful:
+- Debugging support:
+  [Django](https://pypi.org/project/Django/),
+  [Flask](https://pypi.org/project/Flask/),
+  [gevent](https://pypi.org/project/gevent/),
+  [Jinja](https://pypi.org/project/Jinja/),
+  [Pyramid](https://pypi.org/project/pyramid/),
+  [PySpark](https://pypi.org/project/pyspark/),
+  [Scrapy](https://pypi.org/project/Scrapy/),
+  [Watson](https://pypi.org/project/Watson/)
+- Formatting:
+  [autopep8](https://pypi.org/project/autopep8/),
+  [black](https://pypi.org/project/black/),
+  [yapf](https://pypi.org/project/yapf/)
+- Interpreter support:
+  [conda](https://conda.io/),
+  [direnv](https://direnv.net/),
+  [pipenv](https://pypi.org/project/pipenv/),
+  [pyenv](https://github.com/pyenv/pyenv),
+  [venv](https://docs.python.org/3/library/venv.html#module-venv),
+  [virtualenv](https://pypi.org/project/virtualenv/)
+- Linting:
+  [bandit](https://pypi.org/project/bandit/),
+  [flake8](https://pypi.org/project/flake8/),
+  [mypy](https://pypi.org/project/mypy/),
+  [prospector](https://pypi.org/project/prospector/),
+  [pylint](https://pypi.org/project/pylint/),
+  [pydocstyle](https://pypi.org/project/pydocstyle/),
+  [pylama](https://pypi.org/project/pylama/)
+- Testing:
+  [nose](https://pypi.org/project/nose/),
+  [pytest](https://pypi.org/project/pytest/),
+  [unittest](https://docs.python.org/3/library/unittest.html#module-unittest)
+
+And finally thanks to the [Python](https://www.python.org/) development team and
+community for creating a fantastic programming language and community to be a
+part of!
+
+
 ## 2019.6.0-rc (19 June 2019)
 
 ### Enhancements
diff --git a/ThirdPartyNotices-Distribution.txt b/ThirdPartyNotices-Distribution.txt
index 7a6c4f01e9e8..9f43d06cb58e 100644
--- a/ThirdPartyNotices-Distribution.txt
+++ b/ThirdPartyNotices-Distribution.txt
@@ -198,7 +198,7 @@ Microsoft Python extension for Visual Studio Code incorporates third party mater
 191. isarray 1.0.0 (https://github.com/juliangruber/isarray/blob/v1.0.0)
 192. isort 4.3.4 (https://github.com/timothycrosley/isort/tree/4.3.4)
 193. isstream 0.1.2 (https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz)
-194. Jedi 0.12.0 (https://github.com/davidhalter/jedi/tree/v0.12.0)
+194. Jedi 0.13.3 (https://github.com/davidhalter/jedi/tree/v0.13.3)
 195. jquery 3.4.1 (https://registry.npmjs.org/jquery/-/jquery-3.4.1.tgz)
 196. jquery-ui 1.12.1 (https://registry.npmjs.org/jquery-ui/-/jquery-ui-1.12.1.tgz)
 197. js-tokens 3.0.2 (https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz)
@@ -267,7 +267,7 @@ Microsoft Python extension for Visual Studio Code incorporates third party mater
 260. os-browserify 0.3.0 (https://registry.npmjs.org/os-browserify/-/os-browserify-0.3.0.tgz)
 261. os-tmpdir 1.0.2 (https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz)
 262. parse-entities 1.2.0 (https://registry.npmjs.org/parse-entities/-/parse-entities-1.2.0.tgz)
-263. parso 0.2.1 (https://github.com/davidhalter/parso/tree/v0.2.1)
+263. parso 0.5.0 (https://github.com/davidhalter/parso/tree/v0.5.0)
 264. path-browserify 0.0.0 (https://registry.npmjs.org/path-browserify/-/path-browserify-0.0.0.tgz)
 265. path-is-absolute 1.0.1 (https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz)
 266. path-parse 1.0.5 (https://github.com/jbgutierrez/path-parse)
@@ -6111,7 +6111,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
 =========================================
 END OF isstream NOTICES AND INFORMATION
 
-%% Jedi 0.12.0 NOTICES AND INFORMATION BEGIN HERE (https://github.com/davidhalter/jedi/tree/v0.12.0)
+%% Jedi 0.13.3 NOTICES AND INFORMATION BEGIN HERE (https://github.com/davidhalter/jedi/tree/v0.13.3)
 =========================================
 All contributions towards Jedi are MIT licensed.
 
@@ -8335,7 +8335,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 =========================================
 END OF parse-entities NOTICES AND INFORMATION
 
-%% parso 0.2.1 NOTICES AND INFORMATION BEGIN HERE (https://github.com/davidhalter/parso/tree/v0.2.1)
+%% parso 0.5.0 NOTICES AND INFORMATION BEGIN HERE (https://github.com/davidhalter/parso/tree/v0.5.0)
 =========================================
 All contributions towards parso are MIT licensed.
 
diff --git a/news/3 Code Health/6013.md b/news/3 Code Health/6013.md
new file mode 100644
index 000000000000..252b47ebe2d1
--- /dev/null
+++ b/news/3 Code Health/6013.md	
@@ -0,0 +1 @@
+Upgrade Jedi to version 0.13.3.
diff --git a/pythonFiles/completion.py b/pythonFiles/completion.py
index 38f7c5f26f09..99a23c6ed555 100644
--- a/pythonFiles/completion.py
+++ b/pythonFiles/completion.py
@@ -34,7 +34,6 @@ class JediCompletion(object):
 
     def __init__(self):
         self.default_sys_path = sys.path
-        self.environment = jedi.api.environment.Environment(sys.prefix, sys.executable)
         self._input = io.open(sys.stdin.fileno(), encoding='utf-8')
         if (os.path.sep == '/') and (platform.uname()[2].find('Microsoft') > -1):
             # WSL; does not support UNC paths
@@ -563,13 +562,16 @@ def _process_request(self, request):
                     source=request.get('source', None),
                     path=request.get('path', ''),
                     all_scopes=True,
-                    environment=self.environment),
+                    ),
                 request['id'])
 
         script = jedi.Script(
-            source=request.get('source', None), line=request['line'] + 1,
-            column=request['column'], path=request.get('path', ''),
-            sys_path=sys.path, environment=self.environment)
+                source=request.get('source', None),
+                line=request['line'] + 1,
+                column=request['column'],
+                path=request.get('path', ''),
+                sys_path=sys.path,
+                )
 
         if lookup == 'definitions':
             defs = self._get_definitionsx(script.goto_assignments(follow_imports=True), request['id'])
diff --git a/requirements.txt b/requirements.txt
index ce7321654c8c..01f30ed55ca8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-jedi==0.12.0
-parso==0.2.1
+jedi==0.13.3
+parso==0.5.0
 isort==4.3.20
 ptvsd==4.2.10
diff --git a/tpn/distribution.toml b/tpn/distribution.toml
index fd32aff1f93d..babbea3fc8c2 100644
--- a/tpn/distribution.toml
+++ b/tpn/distribution.toml
@@ -384,8 +384,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 [[project]]
 name = "Jedi"
-version = "0.12.0"
-url = "https://github.com/davidhalter/jedi/tree/v0.12.0"
+version = "0.13.3"
+url = "https://github.com/davidhalter/jedi/tree/v0.13.3"
 purpose = "PyPI"
 license = """
 All contributions towards Jedi are MIT licensed.
@@ -1234,8 +1234,8 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 [[project]]
 name = "parso"
-version = "0.2.1"
-url = "https://github.com/davidhalter/parso/tree/v0.2.1"
+version = "0.5.0"
+url = "https://github.com/davidhalter/parso/tree/v0.5.0"
 purpose = "PyPI"
 license = """
 All contributions towards parso are MIT licensed.