diff --git a/doc/changelog.rst b/doc/changelog.rst
index 7acb0c620875578a897808e0755ffce6fe561560..55d01ab10bf22920ef7c94878c0fcb48ab8afa9b 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -10,7 +10,8 @@ unreleased
  
 - **Improvements**
 
-    - update GATT-related mnemonics, add `transmission_col2` :mr:`172`
+    - update version of BAM mnemonics :mr:`175`
+    - update version GATT-related mnemonics, add `transmission_col2` :mr:`172`
     - reorganize the Howto section :mr:`169`
   
 - **New Features**
diff --git a/src/toolbox_scs/constants.py b/src/toolbox_scs/constants.py
index 932c3053f866cf70be2c49157b3fea71362892cb..bc412c2782baeed560d39ab939ce8b06cb0b6b30 100644
--- a/src/toolbox_scs/constants.py
+++ b/src/toolbox_scs/constants.py
@@ -40,12 +40,21 @@ mnemonics = {
 
     # Bunch Arrival Monitors
     "BAM414": ({'source': 'SCS_ILH_LAS/DOOCS/BAM_414_B2:output',
+                'key': 'data.absoluteTD',
+                'dim': ['BAMbunchId']},
+               {'source': 'SCS_ILH_LAS/DOOCS/BAM_414_B2:output',
                 'key': 'data.lowChargeArrivalTime',
                 'dim': ['BAMbunchId']},),
     "BAM1932M": ({'source': 'SCS_ILH_LAS/DOOCS/BAM_1932M_TL:output',
+                  'key': 'data.absoluteTD',
+                  'dim': ['BAMbunchId']},
+                 {'source': 'SCS_ILH_LAS/DOOCS/BAM_1932M_TL:output',
                   'key': 'data.lowChargeArrivalTime',
                   'dim': ['BAMbunchId']},),
     "BAM1932S": ({'source': 'SCS_ILH_LAS/DOOCS/BAM_1932S_TL:output',
+                  'key': 'data.absoluteTD',
+                  'dim': ['BAMbunchId']},
+                 {'source': 'SCS_ILH_LAS/DOOCS/BAM_1932S_TL:output',
                   'key': 'data.lowChargeArrivalTime',
                   'dim': ['BAMbunchId']},),