diff --git a/flake.lock b/flake.lock
index c815cf1c..588eef53 100644
--- a/flake.lock
+++ b/flake.lock
@@ -145,11 +145,11 @@
         "rev": "9a6868506fa362d5368fb6214e179bb6d68407b0",
         "revCount": 21,
         "type": "git",
-        "url": "https://gitea.c3d2.de/C3D2/nix-user-module.git"
+        "url": "https://gitea.c3d2.de/c3d2/nix-user-module.git"
       },
       "original": {
         "type": "git",
-        "url": "https://gitea.c3d2.de/C3D2/nix-user-module.git"
+        "url": "https://gitea.c3d2.de/c3d2/nix-user-module.git"
       }
     },
     "caveman": {
@@ -195,11 +195,11 @@
         "rev": "a6831703454a941f6b0fd6b9896bf6b2d5fc2120",
         "revCount": 2,
         "type": "git",
-        "url": "https://gitea.c3d2.de/C3D2/deployment.git"
+        "url": "https://gitea.c3d2.de/c3d2/deployment.git"
       },
       "original": {
         "type": "git",
-        "url": "https://gitea.c3d2.de/C3D2/deployment.git"
+        "url": "https://gitea.c3d2.de/c3d2/deployment.git"
       }
     },
     "fenix": {
@@ -807,11 +807,11 @@
         "rev": "d5d8e2d5888e47c03bf4682ec7eba4472c52707b",
         "revCount": 408,
         "type": "git",
-        "url": "https://gitea.c3d2.de/C3D2/yammat.git"
+        "url": "https://gitea.c3d2.de/c3d2/yammat.git"
       },
       "original": {
         "type": "git",
-        "url": "https://gitea.c3d2.de/C3D2/yammat.git"
+        "url": "https://gitea.c3d2.de/c3d2/yammat.git"
       }
     },
     "zentralwerk": {
diff --git a/flake.nix b/flake.nix
index ea45bf3e..76e36d76 100644
--- a/flake.nix
+++ b/flake.nix
@@ -67,14 +67,14 @@
       };
     };
     c3d2-user-module = {
-      url = "git+https://gitea.c3d2.de/C3D2/nix-user-module.git";
+      url = "git+https://gitea.c3d2.de/c3d2/nix-user-module.git";
       inputs = {
         nixos-modules.follows = "nixos-modules";
         nixpkgs-lib.follows = "nixos";
       };
     };
     deployment = {
-      url = "git+https://gitea.c3d2.de/C3D2/deployment.git";
+      url = "git+https://gitea.c3d2.de/c3d2/deployment.git";
       inputs = {
         zentralwerk.follows = "zentralwerk";
       };
@@ -206,7 +206,7 @@
       inputs.nixpkgs.follows = "nixos";
     };
     yammat = {
-      url = "git+https://gitea.c3d2.de/C3D2/yammat.git";
+      url = "git+https://gitea.c3d2.de/c3d2/yammat.git";
       inputs.nixpkgs.follows = "nixos";
     };
     zentralwerk = {