diff --git a/bicycleHiresLondon.csv b/bicycleHiresLondon.csv
index 72dddc8..04d6a3f 100644
--- a/bicycleHiresLondon.csv
+++ b/bicycleHiresLondon.csv
@@ -160,3 +160,4 @@ Month,NumberOfHires,AvHireTime
 2023-09,847108,19.0
 2023-10,789807,17.0
 2023-11,664981,15.0
+2023-12,558837,16.0
diff --git a/bicycleHiresLondon.json b/bicycleHiresLondon.json
index cebdad9..9b2c910 100644
--- a/bicycleHiresLondon.json
+++ b/bicycleHiresLondon.json
@@ -803,5 +803,10 @@
    "Month": "2023-11",
    "NumberOfHires": 664981,
    "AvHireTime": 15
+ },
+ {
+   "Month": "2023-12",
+   "NumberOfHires": 558837,
+   "AvHireTime": 16
  }
 ]
\ No newline at end of file