diff --git a/libs/apscheduler/__init__.py b/libs/apscheduler/__init__.py
index d93e1b3..71cc53d 100644
--- a/libs/apscheduler/__init__.py
+++ b/libs/apscheduler/__init__.py
@@ -1,3 +1,3 @@
-version_info = (2, 1, 1)
+version_info = (2, 1, 2)
 version = '.'.join(str(n) for n in version_info[:3])
 release = '.'.join(str(n) for n in version_info)
diff --git a/libs/apscheduler/jobstores/shelve_store.py b/libs/apscheduler/jobstores/shelve_store.py
index bd68333..d1be58f 100644
--- a/libs/apscheduler/jobstores/shelve_store.py
+++ b/libs/apscheduler/jobstores/shelve_store.py
@@ -21,7 +21,10 @@ class ShelveJobStore(JobStore):
         self.jobs = []
         self.path = path
         self.pickle_protocol = pickle_protocol
-        self.store = shelve.open(path, 'c', self.pickle_protocol)
+        self._open_store()
+
+    def _open_store(self):
+        self.store = shelve.open(self.path, 'c', self.pickle_protocol)
 
     def _generate_id(self):
         id = None
@@ -33,7 +36,8 @@ class ShelveJobStore(JobStore):
     def add_job(self, job):
         job.id = self._generate_id()
         self.store[job.id] = job.__getstate__()
-        self.store.sync()
+        self.store.close()
+        self._open_store()
         self.jobs.append(job)
 
     def update_job(self, job):
@@ -41,11 +45,13 @@ class ShelveJobStore(JobStore):
         job_dict['next_run_time'] = job.next_run_time
         job_dict['runs'] = job.runs
         self.store[job.id] = job_dict
-        self.store.sync()
+        self.store.close()
+        self._open_store()
 
     def remove_job(self, job):
         del self.store[job.id]
-        self.store.sync()
+        self.store.close()
+        self._open_store()
         self.jobs.remove(job)
 
     def load_jobs(self):
diff --git a/libs/apscheduler/scheduler.py b/libs/apscheduler/scheduler.py
index d6afcad..319037a 100644
--- a/libs/apscheduler/scheduler.py
+++ b/libs/apscheduler/scheduler.py
@@ -586,7 +586,10 @@ class Scheduler(object):
                 wait_seconds = time_difference(next_wakeup_time, now)
                 logger.debug('Next wakeup is due at %s (in %f seconds)',
                              next_wakeup_time, wait_seconds)
-                self._wakeup.wait(wait_seconds)
+                try:
+                    self._wakeup.wait(wait_seconds)
+                except IOError:  # Catch errno 514 on some Linux kernels
+                    pass
                 self._wakeup.clear()
             elif self.standalone:
                 logger.debug('No jobs left; shutting down scheduler')
@@ -594,7 +597,10 @@ class Scheduler(object):
                 break
             else:
                 logger.debug('No jobs; waiting until a job is added')
-                self._wakeup.wait()
+                try:
+                    self._wakeup.wait()
+                except IOError:  # Catch errno 514 on some Linux kernels
+                    pass
                 self._wakeup.clear()
 
         logger.info('Scheduler has been shut down')