diff --git a/apolpi.py b/apolpi.py
index dd2e791..f4b12ad 100644
--- a/apolpi.py
+++ b/apolpi.py
@@ -103,11 +103,12 @@
 
 
 def _fetch():
-    roles = db.engine.execute(QUERY)
-    out = []
-    for role in roles:
-        out.append(dict(zip(columns, role)))
-    return out
+    with db.engine.connect() as connection:
+        roles = connection.execute(QUERY)
+        out = []
+        for role in roles:
+            out.append(dict(zip(columns, role)))
+        return out
 
 
 @app.route("/organism/findAllOrganisms", methods=["GET", "POST"])