diff --git a/Jenkinsfile b/Jenkinsfile
index 69a79c4f..3d506791 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,7 +14,7 @@ pipeline {
           steps {
             checkout scm
             sh 'rm -rf env'
-            sh '/usr/bin/python3 -m venv env'
+            sh '/usr/bin/python3.11 -m venv env'
             sh 'env/bin/python -m pip install -U mypy flake8'
             sh 'find tests -name "*.py" | xargs env/bin/mypy --ignore-missing-imports'
             sh 'find src -name "*.py" | xargs env/bin/mypy --ignore-missing-imports'
@@ -27,7 +27,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
@@ -41,7 +41,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
@@ -55,7 +55,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
@@ -69,7 +69,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
@@ -83,7 +83,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
@@ -97,7 +97,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
@@ -112,7 +112,7 @@ pipeline {
             checkout scm
             sh '''
               rm -rf env
-              /usr/bin/python3 -m venv env
+              /usr/bin/python3.11 -m venv env
               source env/bin/activate
               python -m pip install -U -e .
 
diff --git a/setup.py b/setup.py
index 3477af24..f240be68 100644
--- a/setup.py
+++ b/setup.py
@@ -28,9 +28,8 @@ def read(filename):
     },
     package_dir={'': 'src'},
     packages=['crate.qa'],
-    namespace_packages=['crate'],
     install_requires=[
-        'crate',
+        'crate>=1.0.0.dev2',
         'cr8>=0.25.0',
         'Cython',
         'asyncpg>=0.21',
diff --git a/src/crate/__init__.py b/src/crate/__init__.py
new file mode 100644
index 00000000..e69de29b