diff --git a/pkgs/by-name/sa/sabnzbd/package.nix b/pkgs/by-name/sa/sabnzbd/package.nix
index 0ffa4d855104..2d5cc67fdfca 100644
--- a/pkgs/by-name/sa/sabnzbd/package.nix
+++ b/pkgs/by-name/sa/sabnzbd/package.nix
@@ -24,11 +24,11 @@ let
       babelfish
       cffi
       chardet
-      cheetah3
       cheroot
       cherrypy
       configobj
       cryptography
+      ct3
       feedparser
       guessit
       jaraco-classes
diff --git a/pkgs/by-name/si/sickgear/package.nix b/pkgs/by-name/si/sickgear/package.nix
index 267dd09a3982..cf24f24b0d3b 100644
--- a/pkgs/by-name/si/sickgear/package.nix
+++ b/pkgs/by-name/si/sickgear/package.nix
@@ -10,7 +10,7 @@
 let
   pythonEnv = python3.withPackages (
     ps: with ps; [
-      cheetah3
+      ct3
       lxml
     ]
   );
diff --git a/pkgs/development/python-modules/cheetah3/default.nix b/pkgs/development/python-modules/ct3/default.nix
similarity index 97%
rename from pkgs/development/python-modules/cheetah3/default.nix
rename to pkgs/development/python-modules/ct3/default.nix
index 2b7f46b2e646..74c48f1e5c85 100644
--- a/pkgs/development/python-modules/cheetah3/default.nix
+++ b/pkgs/development/python-modules/ct3/default.nix
@@ -6,7 +6,7 @@
 }:
 
 buildPythonPackage (finalAttrs: {
-  pname = "cheetah3";
+  pname = "ct3";
   version = "3.4.0.post5";
   pyproject = true;
 
diff --git a/pkgs/servers/nosql/mongodb/mongodb.nix b/pkgs/servers/nosql/mongodb/mongodb.nix
index 81ff4297f58c..833bb100dcec 100644
--- a/pkgs/servers/nosql/mongodb/mongodb.nix
+++ b/pkgs/servers/nosql/mongodb/mongodb.nix
@@ -37,7 +37,7 @@ let
   python = scons.python.withPackages (
     ps: with ps; [
       pyyaml
-      cheetah3
+      ct3
       psutil
       setuptools_80
       distutils
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index ac7b229aa309..07761f2326f4 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -152,6 +152,7 @@ mapAliases {
   chai = throw "'chai' has been removed as it is no longer maintained upstream and the repository was archived"; # Added 2026-06-08
   characteristic = throw "'characteristic' has been removed because it is no longer maintained upstream"; # Added 2026-01-14
   chart-studio = throw "'chart-studio' has been removed as it is no longer maintained upstream"; # Added 2026-03-12
+  cheetah3 = ct3; # added 2026-07-24
   chromeprint = throw "'chromaprint' was removed as it depended on m2r which was removed."; # Added 2026-05-27
   cirq-rigetti = throw "cirq-rigetti was removed because it is no longer provided by upstream"; # added 2025-09-13
   class-registry = throw "'class-registry' has been renamed to/replaced by 'phx-class-registry'"; # Converted to throw 2025-10-29
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e71c89c0aef8..e77a95b69a27 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3058,8 +3058,6 @@ self: super: with self; {
 
   checksumdir = callPackage ../development/python-modules/checksumdir { };
 
-  cheetah3 = callPackage ../development/python-modules/cheetah3 { };
-
   chefiq-ble = callPackage ../development/python-modules/chefiq-ble { };
 
   cheroot = callPackage ../development/python-modules/cheroot { };
@@ -3767,6 +3765,8 @@ self: super: with self; {
 
   csvw = callPackage ../development/python-modules/csvw { };
 
+  ct3 = callPackage ../development/python-modules/ct3 { };
+
   ctap-keyring-device = callPackage ../development/python-modules/ctap-keyring-device { };
 
   ctranslate2 = callPackage ../development/python-modules/ctranslate2 {