diff --git a/docs/source/conf.py b/docs/source/conf.py
index da65266..3b1fe93 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -56,9 +56,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '3.0'
+version = '3.1'
 # The full version, including alpha/beta/rc tags.
-release = '3.0'
+release = '3.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pyproject.toml b/pyproject.toml
index 56435e4..591deac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "wrds"
-version = "3.1.0"
+version = "3.1.1"
 description = "Python access to WRDS Data"
 authors = [
     "Eric Stein <ericst@wharton.upenn.edu>",
diff --git a/setup.py b/setup.py
index 8b60903..b9bbfda 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
 
 setup(
     name='wrds',
-    version='3.1.0',
+    version='3.1.1',
     description="Python access to WRDS Data",
     long_description=open('README.rst').read(),
     author='WRDS',
diff --git a/wrds/__init__.py b/wrds/__init__.py
index 2e58b4b..771e18a 100644
--- a/wrds/__init__.py
+++ b/wrds/__init__.py
@@ -25,7 +25,7 @@
 """
 
 __title__ = 'wrds-py'
-__version__ = '3.1.0'
+__version__ = '3.1.1'
 __author__ = 'Wharton Research Data Services'
 __copyright__ = '2017-2021 Wharton Research Data Services'
 
diff --git a/wrds/sql.py b/wrds/sql.py
index e5ced77..66f3a14 100644
--- a/wrds/sql.py
+++ b/wrds/sql.py
@@ -5,6 +5,7 @@
 import stat
 import pandas as pd
 import sqlalchemy as sa
+import urllib.parse
 from wrds import __version__ as wrds_version
 
 from sys import version_info
@@ -110,7 +111,7 @@ def connect(self):
             self.engine = sa.create_engine(
                 pghost.format(
                     usr=self._username,
-                    pwd=self._password,
+                    pwd=urllib.parse.quote_plus(self._password),
                     host=self._hostname,
                     port=self._port,
                     dbname=self._dbname),