diff --git a/mongoengine_plus/version.py b/mongoengine_plus/version.py
index 10939f0..4c9f88d 100644
--- a/mongoengine_plus/version.py
+++ b/mongoengine_plus/version.py
@@ -1 +1 @@
-__version__ = '0.1.2'
+__version__ = '0.2.0.dev0'
diff --git a/requirements.txt b/requirements.txt
index 2d7d1f0..8bafd9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ blinker==1.8.2
 dnspython==2.1.0
 mongoengine==0.27.0
 pymongo==3.13.0
-pymongocrypt==1.9.2
\ No newline at end of file
+pymongocrypt==1.9.2
diff --git a/setup.py b/setup.py
index 4cf608f..2f833e8 100644
--- a/setup.py
+++ b/setup.py
@@ -27,6 +27,8 @@
     install_requires=[
         'mongoengine>=0.20.0',
         'dnspython>=2.0.0,<2.2.0',
+        'pymongo>=3.11.0,<4.0.0',
+        'pymongocrypt>=1.9.2,<2.0.0',
     ],
     classifiers=[
         'Programming Language :: Python :: 3.8',