diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..64f6c88
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1 @@
+* @joamatab @ThomasPluck @nikosavola @cdaunt @flaport
diff --git a/pyproject.toml b/pyproject.toml
index 94a9af6..08eac14 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,47 +7,47 @@ dev = [
   {include-group = "docs"},
   {include-group = "lint"},
   {include-group = "test"},
-  "build>=1.2.0",
-  "gdsfactory>=9.34.1",
-  "meow-sim>=0.14.0",
-  "mkinit>=1.1.0",
-  "scikit-learn>=1.6.1",
-  "tmm>=0.2.0",
-  "towncrier>=24.0.0",
-  "ty>=0.0.20"
+  "build~=1.4.2",
+  "gdsfactory~=9.39.3",
+  "meow-sim~=0.15.0",
+  "mkinit~=1.2.0",
+  "scikit-learn~=1.8.0",
+  "tmm~=0.2.0",
+  "towncrier~=25.8.0",
+  "ty~=0.0.26"
 ]
 docs = [
-  "altair>=5.5.0",
-  "griffe>=1.5.6",
-  "ipykernel>=6.29.5",
-  "matplotlib>=3.10.0",
-  "mkautodoc>=0.2.0",
-  "mkdocs-autorefs>=1.3.0",
-  "mkdocs-bibtex>=4.4.0",
-  "mkdocs-material>=9.6.0",
+  "altair~=6.0.0",
+  "griffe~=2.0.2",
+  "ipykernel~=7.2.0",
+  "matplotlib~=3.10.8",
+  "mkautodoc~=0.2.0",
+  "mkdocs-autorefs~=1.4.4",
+  "mkdocs-bibtex~=4.4.0",
+  "mkdocs-material~=9.7.6",
   "mkdocs-matplotlib",
-  "mkdocs>=1.6.1",
-  "mkdocstrings[python]>=0.27.0",
-  "nbconvert>=7.16.6",
-  "plotly>=6.0.0",
-  "pydot>=4.0.1",
-  "vega-datasets>=0.9.0"
+  "mkdocs~=1.6.1",
+  "mkdocstrings[python]~=1.0.3",
+  "nbconvert~=7.17.0",
+  "plotly~=6.6.0",
+  "pydot~=4.0.1",
+  "vega-datasets~=0.9.0"
 ]
 lint = [
-  "nb-clean>=4.0.1",
-  "nbstripout>=0.8.1",
-  "pre-commit>=4.1.0",
-  "pyright>=1.1.0",
-  "ruff>=0.9.0"
+  "nb-clean~=4.0.1",
+  "nbstripout~=0.9.1",
+  "pre-commit~=4.5.1",
+  "pyright~=1.1.408",
+  "ruff~=0.15.8"
 ]
 test = [
-  "hypothesis>=6.0.0",
-  "jaxellip>=0.0.1",
-  "papermill>=2.6.0",
-  "pytest-cov>=6.0.0",
-  "pytest-randomly>=3.16.0",
-  "pytest-xdist>=3.6.0",
-  "pytest>=8.3.0"
+  "hypothesis~=6.151.10",
+  "jaxellip~=0.0.1",
+  "papermill~=2.7.0",
+  "pytest-cov~=7.1.0",
+  "pytest-randomly~=4.0.1",
+  "pytest-xdist~=3.8.0",
+  "pytest~=9.0.2"
 ]
 
 [project]
@@ -66,23 +66,23 @@ classifiers = [
 ]
 dependencies = [
   "jax",
-  "jaxtyping>=0.2.38",
-  "klujax>=0.4.1,<0.5.0",
-  "lark>=1.2.2",
-  "matplotlib>=3.0.0",
-  "natsort>=8.0.0",
-  "networkx>=3.0.0",
-  "numpy>=2.2.0",
-  "optax>=0.2.0",
-  "orjson>=3.0.0",
-  "pandas>=2.0.0",
-  "pydantic>=2.10.0",
-  "pyyaml>=6.0.0",
-  "scikit-rf>=1.8.0",
-  "sympy>=1.14.0",
-  "tqdm>=4.60.0",
-  "typing-extensions>=4.13.2",
-  "xarray>=2025.1.2"
+  "jaxtyping~=0.3.9",
+  "klujax~=0.4.8",
+  "lark~=1.3.1",
+  "matplotlib~=3.10.8",
+  "natsort~=8.4.0",
+  "networkx~=3.6.1",
+  "numpy~=2.4.4",
+  "optax~=0.2.8",
+  "orjson~=3.11.7",
+  "pandas~=3.0.1",
+  "pydantic~=2.12.5",
+  "pyyaml~=6.0.3",
+  "scikit-rf~=1.11.0",
+  "sympy~=1.14.0",
+  "tqdm~=4.67.3",
+  "typing-extensions~=4.15.0",
+  "xarray~=2026.2.0"
 ]
 description = "Autograd and XLA for S-parameters"
 keywords = [
@@ -106,7 +106,7 @@ requires-python = ">=3.11.0"
 version = "0.16.14"
 
 [project.optional-dependencies]
-rf = ["jaxellip>=0.0.1"]
+rf = ["jaxellip~=0.0.1"]
 
 [[tool.bver.file]]
 kind = "python"