diff --git a/sso/services/miningbuddy/__init__.py b/sso/services/miningbuddy/__init__.py
index 86784bd..e8647a6 100644
--- a/sso/services/miningbuddy/__init__.py
+++ b/sso/services/miningbuddy/__init__.py
@@ -38,6 +38,10 @@ class MiningBuddyService(BaseService):
 
         self._dbcursor = self._db.cursor()
 
+    def __del__(self):
+        self._db.close()
+        self._db = None
+
     def _gen_salt(self):
         return settings.MINING_SALT
 
diff --git a/sso/services/wiki/__init__.py b/sso/services/wiki/__init__.py
index 2e66c0e..2da08b0 100644
--- a/sso/services/wiki/__init__.py
+++ b/sso/services/wiki/__init__.py
@@ -38,6 +38,10 @@ class MediawikiService(BaseService):
 
         self._dbcursor = self._db.cursor()
 
+    def __del__(self):
+        self._db.close()
+        self._db = None
+
     def _gen_salt(self):
         return "%x" % random.randint(0, 2147483647)