diff --git a/news/1 Enhancements/3855.md b/news/1 Enhancements/3855.md
new file mode 100644
index 000000000000..49337f6f6c41
--- /dev/null
+++ b/news/1 Enhancements/3855.md	
@@ -0,0 +1 @@
+Upgrade `jedi` and `parso` to the latest versions (`0.13.2` and `0.3.1` respectively).
diff --git a/pythonFiles/completion.py b/pythonFiles/completion.py
index d0b8e4a0866e..a85b8defe7fd 100644
--- a/pythonFiles/completion.py
+++ b/pythonFiles/completion.py
@@ -34,7 +34,7 @@ class JediCompletion(object):
 
     def __init__(self):
         self.default_sys_path = sys.path
-        self.environment = jedi.api.environment.Environment(sys.prefix, sys.executable)
+        self.environment = jedi.api.environment.Environment(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
diff --git a/requirements.txt b/requirements.txt
index 94f727a2a9fc..3b266dd1bf61 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-jedi==0.12.0
-parso==0.2.1
+jedi==0.13.2
+parso==0.3.1
 isort==4.3.4
 ptvsd==4.2.0