diff --git a/app/models/spreadsheet.py b/app/models/spreadsheet.py
index 7b66a7b0f..59ca2bdd7 100644
--- a/app/models/spreadsheet.py
+++ b/app/models/spreadsheet.py
@@ -3,6 +3,7 @@ from io import StringIO
 from os import path
 
 import pyexcel
+import pyexcel_xlsx
 
 
 class Spreadsheet():
@@ -72,6 +73,15 @@ class Spreadsheet():
             file_content = StringIO(
                 Spreadsheet.normalise_newlines(file_content))
 
+        if extension == 'xlsm':
+            file_data = pyexcel_xlsx.get_data(file_content)
+            instance = cls.from_rows(
+                # Get the first sheet from the workbook
+                list(file_data.values())[0],
+                filename,
+            )
+            return instance
+
         instance = cls.from_rows(
             pyexcel.iget_array(
                 file_type=extension,
diff --git a/requirements.txt b/requirements.txt
index f09debcb3..7457048f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -105,7 +105,7 @@ lml==0.1.0
     # via
     #   pyexcel
     #   pyexcel-io
-lxml==4.6.5
+lxml==4.8.0
     # via
     #   pyexcel-ezodf
     #   pyexcel-ods3
@@ -119,7 +119,7 @@ notifications-python-client==6.3.0
     # via -r requirements.in
 notifications-utils @ git+https://github.com/alphagov/notifications-utils.git@55.1.6
     # via -r requirements.in
-openpyxl==3.0.7
+openpyxl==3.0.9
     # via pyexcel-xlsx
 orderedset==2.0.3
     # via notifications-utils
@@ -205,7 +205,7 @@ smartypants==2.0.1
     # via notifications-utils
 statsd==3.3.0
     # via notifications-utils
-texttable==1.6.3
+texttable==1.6.4
     # via pyexcel
 urllib3==1.26.5
     # via
@@ -222,7 +222,7 @@ wtforms==3.0.1
     # via
     #   -r requirements.in
     #   flask-wtf
-xlrd==1.2.0
+xlrd==2.0.1
     # via pyexcel-xls
 xlwt==1.3.0
     # via pyexcel-xls