diff --git a/setup.py b/setup.py
index 2ff89f3..65ad525 100644
--- a/setup.py
+++ b/setup.py
@@ -44,8 +44,8 @@ def load_about():
     packages=find_packages(exclude=["tests*"]),
     include_package_data=True,
     python_requires=">=3.8",
-    install_requires=["tutor>=19.0.0,<20.0.0"],
-    extras_require={"dev": ["tutor[dev]>=19.0.0,<20.0.0"]},
+    install_requires=["tutor>=18.0.0,<19.0.0"],
+    extras_require={"dev": ["tutor[dev]>=18.0.0,<19.0.0"]},
     entry_points={
         "tutor.plugin.v1": [
             "android = tutorandroid.plugin"
diff --git a/tutorandroid/__about__.py b/tutorandroid/__about__.py
index 0122a6f..c6a8b8e 100644
--- a/tutorandroid/__about__.py
+++ b/tutorandroid/__about__.py
@@ -1 +1 @@
-__version__ = "19.0.0"
+__version__ = "18.0.0"