diff --git a/openedx/features/calendar_sync/tests/test_ics.py b/openedx/features/calendar_sync/tests/test_ics.py
index 9101e367e03e..02301079285d 100644
--- a/openedx/features/calendar_sync/tests/test_ics.py
+++ b/openedx/features/calendar_sync/tests/test_ics.py
@@ -65,9 +65,9 @@ def expected_ics(self, *assignments):
 METHOD:REQUEST
 BEGIN:VEVENT
 SUMMARY:{summary}
-DTSTART;VALUE=DATE-TIME:{timedue}
+DTSTART:{timedue}
 DURATION:P0D
-DTSTAMP;VALUE=DATE-TIME:20131003T082455Z
+DTSTAMP:20131003T082455Z
 UID:{uid}
 SEQUENCE:{sequence}
 DESCRIPTION:{summary} is due for {course}.
diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index baafcff961bb..77dd40708b96 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -80,5 +80,4 @@ pytz==2022.2.1
 # so adding following constraints and will unpin one by one.
 
 django-ratelimit<4.0.0
-icalendar==5.0.1
 cryptography==38.0.4 # greater version has some issues.
diff --git a/requirements/edx-sandbox/py38.txt b/requirements/edx-sandbox/py38.txt
index c6fa31d03d72..37795ade02dc 100644
--- a/requirements/edx-sandbox/py38.txt
+++ b/requirements/edx-sandbox/py38.txt
@@ -28,7 +28,7 @@ lxml==4.9.2
     # via
     #   -r requirements/edx-sandbox/py38.in
     #   openedx-calc
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via
     #   chem
     #   openedx-calc
diff --git a/requirements/edx/base.txt b/requirements/edx/base.txt
index 2e80b1890b8b..deb73bb0a852 100644
--- a/requirements/edx/base.txt
+++ b/requirements/edx/base.txt
@@ -597,10 +597,8 @@ html5lib==1.1
     # via
     #   -r requirements/edx/base.in
     #   ora2
-icalendar==5.0.1
-    # via
-    #   -c requirements/edx/../constraints.txt
-    #   -r requirements/edx/base.in
+icalendar==5.0.4
+    # via -r requirements/edx/base.in
 idna==3.4
     # via
     #   -r requirements/edx/paver.txt
@@ -699,7 +697,7 @@ markdown==3.3.7
     #   xblock-poll
 markey==0.8
     # via enmerkar-underscore
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via
     #   -r requirements/edx/paver.txt
     #   chem
diff --git a/requirements/edx/coverage.txt b/requirements/edx/coverage.txt
index fd567d2824cf..41b66a162452 100644
--- a/requirements/edx/coverage.txt
+++ b/requirements/edx/coverage.txt
@@ -12,7 +12,7 @@ diff-cover==7.3.0
     # via -r requirements/edx/coverage.in
 jinja2==3.1.2
     # via diff-cover
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via jinja2
 pluggy==1.0.0
     # via diff-cover
diff --git a/requirements/edx/development.txt b/requirements/edx/development.txt
index ed007186e1ae..bfa3c1a601ca 100644
--- a/requirements/edx/development.txt
+++ b/requirements/edx/development.txt
@@ -709,7 +709,7 @@ execnet==1.9.0
     #   pytest-xdist
 factory-boy==3.2.1
     # via -r requirements/edx/testing.txt
-faker==16.4.0
+faker==16.6.0
     # via
     #   -r requirements/edx/testing.txt
     #   factory-boy
@@ -771,10 +771,8 @@ html5lib==1.1
     #   ora2
 httpretty==1.1.4
     # via -r requirements/edx/testing.txt
-icalendar==5.0.1
-    # via
-    #   -c requirements/edx/../constraints.txt
-    #   -r requirements/edx/testing.txt
+icalendar==5.0.4
+    # via -r requirements/edx/testing.txt
 idna==3.4
     # via
     #   -r requirements/edx/testing.txt
@@ -927,7 +925,7 @@ markey==0.8
     # via
     #   -r requirements/edx/testing.txt
     #   enmerkar-underscore
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via
     #   -r requirements/edx/testing.txt
     #   chem
diff --git a/requirements/edx/doc.txt b/requirements/edx/doc.txt
index f15d1fc0741e..494256c6f1be 100644
--- a/requirements/edx/doc.txt
+++ b/requirements/edx/doc.txt
@@ -38,7 +38,7 @@ jinja2==3.1.2
     # via
     #   code-annotations
     #   sphinx
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via jinja2
 packaging==23.0
     # via sphinx
diff --git a/requirements/edx/paver.txt b/requirements/edx/paver.txt
index ec13f2fdf300..29fa7913cf5c 100644
--- a/requirements/edx/paver.txt
+++ b/requirements/edx/paver.txt
@@ -18,7 +18,7 @@ lazy==1.5
     # via -r requirements/edx/paver.in
 libsass==0.10.0
     # via -r requirements/edx/paver.in
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via -r requirements/edx/paver.in
 mock==5.0.1
     # via -r requirements/edx/paver.in
diff --git a/requirements/edx/testing.txt b/requirements/edx/testing.txt
index 801964fb24f6..2baf51ee5438 100644
--- a/requirements/edx/testing.txt
+++ b/requirements/edx/testing.txt
@@ -683,7 +683,7 @@ execnet==1.9.0
     # via pytest-xdist
 factory-boy==3.2.1
     # via -r requirements/edx/testing.in
-faker==16.4.0
+faker==16.6.0
     # via factory-boy
 fastapi==0.89.1
     # via pact-python
@@ -737,10 +737,8 @@ html5lib==1.1
     #   ora2
 httpretty==1.1.4
     # via -r requirements/edx/testing.in
-icalendar==5.0.1
-    # via
-    #   -c requirements/edx/../constraints.txt
-    #   -r requirements/edx/base.txt
+icalendar==5.0.4
+    # via -r requirements/edx/base.txt
 idna==3.4
     # via
     #   -r requirements/edx/base.txt
@@ -885,7 +883,7 @@ markey==0.8
     # via
     #   -r requirements/edx/base.txt
     #   enmerkar-underscore
-markupsafe==2.1.1
+markupsafe==2.1.2
     # via
     #   -r requirements/edx/base.txt
     #   -r requirements/edx/coverage.txt