diff --git a/pixi.toml b/pixi.toml
index 9db76f7c6..837fb5402 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -53,8 +53,18 @@ initialize-julia = { depends_on = [
 # Docs
 build-julia-docs = { cmd = "julia --project docs/make.jl", depends_on = [
     "initialize-julia",
+], inputs = [
+    "core",
+    "docs/make.jl",
+], outputs = [
+    "docs/build",
+] }
+quartodoc-build = { cmd = "quartodoc build && rm objects.json", cwd="docs", inputs = [
+    "docs/_quarto.yml",
+    "python/ribasim",
+], outputs = [
+    "docs/python/reference",
 ] }
-quartodoc-build = { cmd = "quartodoc build && rm objects.json", cwd = "docs" }
 quarto-preview = { cmd = "quarto preview docs", depends_on = [
     "quartodoc-build",
     "generate-testmodels",
@@ -99,11 +109,20 @@ test-ribasim-core = { cmd = "julia --project=core --eval 'using Pkg; Pkg.test()'
 test-ribasim-core-cov = { cmd = "julia --project=core --eval 'using Pkg; Pkg.test(coverage=true, julia_args=[\"--check-bounds=yes\"])'", depends_on = [
     "generate-testmodels",
 ] }
-generate-testmodels = "python utils/generate-testmodels.py"
+generate-testmodels = { cmd = "python utils/generate-testmodels.py", inputs = [
+    "python/ribasim",
+    "python/ribasim_testmodels",
+], outputs = [
+    "generated_testmodels",
+] }
 tests = { depends_on = ["lint", "test-ribasim-python", "test-ribasim-core"] }
 # Codegen
 codegen = { cmd = "julia --project utils/gen_python.jl && ruff format python/ribasim/ribasim/schemas.py", depends_on = [
     "initialize-julia",
+], inputs = [
+    "core",
+], outputs = [
+    "python/ribasim/ribasim/schemas.py",
 ] }
 # Publish
 build-ribasim-python-wheel = { cmd = "rm --recursive --force dist && python -m build && twine check dist/*", cwd = "python/ribasim" }