diff --git a/src/timeline.h b/src/timeline.h
index 352056cf340e7bbbce336e03e67a060f172155b1..0f38ff3e9421c122b61caf74290c170b62b2dd92 100644
--- a/src/timeline.h
+++ b/src/timeline.h
@@ -32,7 +32,7 @@ typedef long long integertime_t;
 typedef char timebin_t;
 
 /*! The number of time bins */
-#define num_time_bins 26
+#define num_time_bins 56
 
 /*! The maximal number of timesteps in a simulation */
 #define max_nr_timesteps (1LL << (num_time_bins + 1))