diff --git a/client/dictionaries/mfc_default_keys.dic b/client/dictionaries/mfc_default_keys.dic
index 632e637b2..465431dd8 100644
--- a/client/dictionaries/mfc_default_keys.dic
+++ b/client/dictionaries/mfc_default_keys.dic
@@ -3163,7 +3163,6 @@ A662F9DC0D3D
 333030313536
 #
 # Poland Warsaw public transport card keys
-a0a1a2a3a4a5
 2481118e5355
 b6f0fc87f57f
 e4fdac292bed
@@ -3172,26 +3171,16 @@ d572c9491137
 64ea317b7abd
 a39a286285db
 898989890823
-898989890823
 898989891789
-898989891789
-898989893089
 898989893089
 b6e56bad206a
 8fe6fa230c69
 4d1095f1af34
 1ad2f99bb9e9
 891089898989
-891089898989
-896389898989
 896389898989
 890163898989
-890163898989
-898927638989
 898927638989
 898989063889
-898989063889
-898989428989
 898989428989
 898989048989
-898989048989