diff --git a/src/Config.py b/src/Config.py
index eddfefb2..caac7f2d 100644
--- a/src/Config.py
+++ b/src/Config.py
@@ -13,7 +13,7 @@ class Config(object):
 
     def __init__(self, argv):
         self.version = "0.7.1"
-        self.rev = 4445
+        self.rev = 4447
         self.argv = argv
         self.action = None
         self.test_parser = None
diff --git a/src/util/Msgpack.py b/src/util/Msgpack.py
index f87b95b0..1033f92e 100644
--- a/src/util/Msgpack.py
+++ b/src/util/Msgpack.py
@@ -78,10 +78,14 @@ def getUnpacker(fallback=False, decode=True):
     else:
         unpacker = msgpack.Unpacker
 
+    extra_kwargs = {"max_buffer_size": 5 * 1024 * 1024}
+    if msgpack.version[0] >= 1:
+        extra_kwargs["strict_map_key"] = False
+
     if decode:  # Workaround for backward compatibility: Try to decode bin to str
-        unpacker = unpacker(raw=True, object_pairs_hook=objectDecoderHook, max_buffer_size=5 * 1024 * 1024)
+        unpacker = unpacker(raw=True, object_pairs_hook=objectDecoderHook, **extra_kwargs)
     else:
-        unpacker = unpacker(raw=False, max_buffer_size=5 * 1024 * 1024)
+        unpacker = unpacker(raw=False, **extra_kwargs)
 
     return unpacker