diff --git a/aioodbc/cursor.py b/aioodbc/cursor.py
index 9ada322..b34f200 100644
--- a/aioodbc/cursor.py
+++ b/aioodbc/cursor.py
@@ -1,5 +1,6 @@
 import pyodbc
 from .log import logger
+from .utils import PY_352
 
 
 __all__ = ['Cursor']
@@ -297,8 +298,12 @@ def rollback(self):
         fut = self._run_operation(self._impl.rollback)
         return fut
 
-    async def __aiter__(self):
-        return self
+    if PY_352:
+        async def __aiter__(self):
+            return self
+    else:
+        def __aiter__(self):
+            return self
 
     async def __anext__(self):
         ret = await self.fetchone()
diff --git a/aioodbc/utils.py b/aioodbc/utils.py
index 097120d..dec7c5c 100644
--- a/aioodbc/utils.py
+++ b/aioodbc/utils.py
@@ -1,6 +1,10 @@
+import sys
 from collections.abc import Coroutine
 
 
+PY_352 = sys.version_info >= (3, 5, 2)
+
+
 class _ContextManager(Coroutine):
 
     __slots__ = ('_coro', '_obj')
diff --git a/ci/Dockerfile b/ci/Dockerfile
index 6b5aabb..2b16fea 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -1,8 +1,8 @@
-FROM python:3.5.1-slim
+FROM python:3.5.2-slim
 RUN apt-get update && apt-get install -y \
     unixODBC wget g++ unixodbc-dev odbc-postgresql libmyodbc libsqlite-dev libtool build-essential && \
     odbcinst -i -d -f /usr/share/libmyodbc/odbcinst.ini && \
-    wget http://http.us.debian.org/debian/pool/main/s/sqliteodbc/libsqliteodbc_0.9992-0.1_amd64.deb && \
+    wget http://archive.ubuntu.com/ubuntu/pool/universe/s/sqliteodbc/libsqliteodbc_0.9992-0.1_amd64.deb && \
     dpkg -i libsqliteodbc_0.9992-0.1_amd64.deb
 
 ADD / /aioodbc