diff --git a/LICENSE b/LICENSE
index b2dd4a2e..9f10cb52 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2022-2024 The GLASS Developers
+Copyright (c) 2022-2026 The GLASS Developers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/glass/fields.py b/glass/fields.py
index 395ffe43..f9eca663 100644
--- a/glass/fields.py
+++ b/glass/fields.py
@@ -882,7 +882,7 @@ def generate(
         raise ValueError(msg)
 
     # cltovar requires numpy but getcl maintains xp, so conversion is required
-    variances = (transformcl.cltovar(np.asarray(getcl(gls, i, i))) for i in range(n))
+    variances = (transformcl.cltovar(getcl(gls, i, i)) for i in range(n))
     grf = _generate_grf(gls, nside, ncorr=ncorr, rng=rng)
 
     for t, x, var in zip(fields, grf, variances, strict=True):
diff --git a/pyproject.toml b/pyproject.toml
index 4ccea2a0..bdc94682 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ dependencies = [
     "array-api-extra>=0.9.0",
     "healpix>=2022.11.1",
     "healpy>=1.15.0",
-    "transformcl>=2022.8.9",
+    "transformcl>=2026.1",
 ]
 description = "Generator for Large Scale Structure"
 dynamic = [
diff --git a/uv.lock b/uv.lock
index 10627c35..b7eb23e7 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1351,7 +1351,7 @@ requires-dist = [
     { name = "healpy", specifier = ">=1.15.0" },
     { name = "jupyter", marker = "extra == 'examples'" },
     { name = "matplotlib", marker = "extra == 'examples'" },
-    { name = "transformcl", specifier = ">=2022.8.9" },
+    { name = "transformcl", specifier = ">=2026.1" },
 ]
 provides-extras = ["examples"]
 
@@ -1630,7 +1630,7 @@ name = "importlib-metadata"
 version = "8.7.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "zipp" },
+    { name = "zipp", marker = "python_full_version < '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/f3/49/3b30cad09e7771a4982d9975a8cbf64f00d4a1ececb53297f1d9a7be1b10/importlib_metadata-8.7.1.tar.gz", hash = "sha256:49fef1ae6440c182052f407c8d34a68f72efc36db9ca90dc0113398f2fdde8bb", size = 57107, upload-time = "2025-12-21T10:00:19.278Z" }
 wheels = [
@@ -4431,15 +4431,15 @@ wheels = [
 
 [[package]]
 name = "transformcl"
-version = "2025.1"
+version = "2026.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "array-api-compat" },
     { name = "flt" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/1e/31/1b051f17ef6ec32aa67de0df7b4680d0dc35c9534721c068e92689d7caaa/transformcl-2025.1.tar.gz", hash = "sha256:7d9dafee8fe380a66da5131daa9ebf0aa37e002679ad8a0282f25c77313ad6c5", size = 4776, upload-time = "2025-05-07T23:39:12.686Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9d/ce/ae8373b67259c3ea6033425161f7d195387b1e68b17d4d00eee1b68e5edd/transformcl-2026.1.tar.gz", hash = "sha256:14551c33d164f3db24b9141f1f77553182a4b9c789f883476eb33d87ea4d8f13", size = 4850, upload-time = "2026-03-02T19:18:21.221Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/d8/b3/7222356f8d1cfa20d6e37dd252a9e11028e71b43210e72d3ac771dc727fb/transformcl-2025.1-py3-none-any.whl", hash = "sha256:c0c07e4c32c0d1a3e3f7b3e25fdcc4270197ed6e936597e348cb91c223ff5cf0", size = 3525, upload-time = "2025-05-07T23:39:11.11Z" },
+    { url = "https://files.pythonhosted.org/packages/fc/98/de7a05005238e03bdc57cd2885c27ad9140539bbaddf2b6ad2b2a0aa9863/transformcl-2026.1-py3-none-any.whl", hash = "sha256:fe9c380074ef783a4f854e0d326eadac677d6a35bc683e3b429d5b49a8e57223", size = 3597, upload-time = "2026-03-02T19:18:19.832Z" },
 ]
 
 [[package]]