diff --git a/README.md b/README.md
index 1af08b2..57f11ab 100644
--- a/README.md
+++ b/README.md
@@ -374,18 +374,18 @@ expiration date (if available), lists of group managers, regular members, and
 readonly members. The report also shows whether each research compartment
 contains data, as well as whether its vault compartment contains data. The
 report can optionally include size and last modified date of both the research
-and vault collection.
+and vault collection, as well as revisions.
 
 optional arguments:
   -h, --help            show this help message and exit
   -q, --quasi-xml       Enable Quasi-XML parser in order to be able to parse
                         characters not supported by regular XML parser
-  -s, --size            Include size of research collection and vault
-                        collection in output
+  -s, --size            Include size of research collection, vault collection
+                        and revisions in output
   -H, --human-readable  Report sizes in human-readable figures (only relevant
                         in combination with --size parameter)
-  -m, --modified        Include last modified date research collection and
-                        vault collection in output
+  -m, --modified        Include last modified date research collection,
+                        revisions and vault collection in output
   -y {1.7,1.8,1.9,1.10}, --yoda-version {1.7,1.8,1.9,1.10}
                         Override Yoda version on the server
 ```
diff --git a/yclienttools/reportgrouplifecycle.py b/yclienttools/reportgrouplifecycle.py
index b6d9a77..42bc8b7 100644
--- a/yclienttools/reportgrouplifecycle.py
+++ b/yclienttools/reportgrouplifecycle.py
@@ -3,7 +3,7 @@
    research compartment contains data, as well as whether its vault compartment contains data.
 
    The report can optionally include size and last modified date of both the research and
-   vault collection.
+   vault collection, as well as revisions.
 '''
 
 import argparse
@@ -44,11 +44,11 @@ def _get_args() -> argparse.Namespace:
     parser.add_argument("-q", "--quasi-xml", default=False, action='store_true',
                         help='Enable Quasi-XML parser in order to be able to parse characters not supported by regular XML parser')
     parser.add_argument("-s", "--size", default=False, action='store_true',
-                        help='Include size of research collection and vault collection in output')
+                        help='Include size of research collection, vault collection and revisions in output')
     parser.add_argument("-H", "--human-readable", default=False, action='store_true',
                         help='Report sizes in human-readable figures (only relevant in combination with --size parameter)')
     parser.add_argument("-m", "--modified", default=False, action='store_true',
-                        help='Include last modified date research collection and vault collection in output')
+                        help='Include last modified date research collection, revisions and vault collection in output')
     common_args.add_default_args(parser)
     return parser.parse_args()
 
@@ -120,6 +120,10 @@ def _get_research_group_collection(session: iRODSSession, group_name: str) -> st
     return f"/{session.zone}/home/{group_name}"
 
 
+def _get_revision_group_collection(session: iRODSSession, group_name: str) -> str:
+    return f"/{session.zone}/yoda/revisions/{group_name}"
+
+
 def _get_research_size(session: iRODSSession, group_name: str) -> Union[int, None]:
     collection = _get_research_group_collection(session, group_name)
     if collection_exists(session, collection):
@@ -136,6 +140,14 @@ def _get_vault_size(session: iRODSSession, group_name: str) -> Union[int, None]:
         return None
 
 
+def _get_revisions_size(session: iRODSSession, group_name: str) -> Union[int, None]:
+    collection = _get_revision_group_collection(session, group_name)
+    if collection_exists(session, collection):
+        return _get_collection_size_for_glr(session, collection)
+    else:
+        return None
+
+
 def _get_collection_size_for_glr(session: iRODSSession, collection_name: str) -> int:
     return get_collection_size(session, collection_name, True, GroupByOption.none, True)['all']
 
@@ -186,13 +198,14 @@ def _get_columns(args: argparse.Namespace) -> List[str]:
                  "Creation date", "Expiration date", "Has research data", "Has vault data"]
 
     if args.size:
-        extra_cols = ["Research collection size", "Vault collection size"]
+        extra_cols = ["Research collection size", "Vault collection size", "Revisions size"]
     else:
         extra_cols = []
 
     if args.modified:
         extra_cols.append("Research last modified")
         extra_cols.append("Vault last modified")
+        extra_cols.append("Revisions last modified")
 
     result = base_cols
     result.extend(extra_cols)
@@ -251,11 +264,14 @@ def _has_data_to_string(value):
         if args.size:
             rowdata.append(_size_to_str(_get_research_size(session, group), args.human_readable))
             rowdata.append(_size_to_str(_get_vault_size(session, group), args.human_readable))
+            rowdata.append(_size_to_str(_get_revisions_size(session, group), args.human_readable))
 
         if args.modified:
             rowdata.append(_timestamp_to_date_str(
                 get_collection_contents_last_modified(session, _get_research_group_collection(session, group))))
             rowdata.append(_timestamp_to_date_str(
                 get_collection_contents_last_modified(session, _get_vault_group_collection(session, group))))
+            rowdata.append(_timestamp_to_date_str(
+                get_collection_contents_last_modified(session, _get_revision_group_collection(session, group))))
 
         output.writerow(rowdata)