diff --git a/docs/installation.rst b/docs/installation.rst
index 74ca8335..c2475655 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -76,7 +76,7 @@ Configure database with MariaDB (optional)
 
 2. Install PyMySQL (within your virtual environment)::
 
-    pip install 'PyMySQL>=0.9,<0.10'
+    pip install 'PyMySQL>=0.9,<1.1'
 
 3. Create an empty database and a database user
 4. Configure :ref:`SQLALCHEMY_DATABASE_URI <configuration>` accordingly
diff --git a/setup.cfg b/setup.cfg
index 2d32c3b3..b0837791 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -52,7 +52,7 @@ dev =
     tox>=3.14.6
     zest.releaser>=6.20.1
     psycopg2-binary>=2.8.5
-    PyMySQL>=0.9,<0.10
+    PyMySQL>=0.9,<1.1
 
 doc =
     Sphinx==4.1.0