diff --git a/pkgs/development/python-modules/gcal-sync/default.nix b/pkgs/development/python-modules/gcal-sync/default.nix
index e9afe6ef1b49..74a460b41c22 100644
--- a/pkgs/development/python-modules/gcal-sync/default.nix
+++ b/pkgs/development/python-modules/gcal-sync/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "gcal-sync";
-  version = "3.0.0";
+  version = "4.0.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.9";
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     owner = "allenporter";
     repo = "gcal_sync";
     rev = "refs/tags/${version}";
-    hash = "sha256-xRmNV06gMdPPHcvgJTvxPZBUi1BbFTnwZpzXLBluBYo=";
+    hash = "sha256-HHRBH/cEQEyl5AV6RguItdm5AjBwkZ0RqispeWll7VI=";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/development/python-modules/ical/default.nix b/pkgs/development/python-modules/ical/default.nix
index d5ac5f4196ed..c472048d38e5 100644
--- a/pkgs/development/python-modules/ical/default.nix
+++ b/pkgs/development/python-modules/ical/default.nix
@@ -15,7 +15,7 @@
 
 buildPythonPackage rec {
   pname = "ical";
-  version = "4.1.0";
+  version = "4.1.1";
   format = "setuptools";
 
   disabled = pythonOlder "3.9";
@@ -24,7 +24,7 @@ buildPythonPackage rec {
     owner = "allenporter";
     repo = pname;
     rev = "refs/tags/${version}";
-    hash = "sha256-pZtjGWmEVcHSCgiVTKoEaRvec02cz3x93W+UXx3J8gE=";
+    hash = "sha256-yPFFOhAscLvhKo7sgXtH1HwcDYq8kWKHzrr3ep857Io=";
   };
 
   propagatedBuildInputs = [