diff --git a/pyproject.toml b/pyproject.toml
index 65ab830..3e231e7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,12 +5,14 @@ description = "Python client for Griptape Cloud API"
 readme = "README.md"
 requires-python = ">=3.12.0, <3.13"
 dependencies = [
+    "attrs>=22.2.0",
     "httpx>=0.28.1",
-    "PyYAML>=6.0.3"
+    "PyYAML>=6.0.3",
+    "python-dateutil>=2.8.0"
 ]
 
 [dependency-groups]
-dev = ["mdformat>=0.7.22", "pyright>=1.1.396", "ruff>=0.11.0", "typos>=1.30.2", "openapi-python-client>=0.26.2", "python-dateutil>=2.8.0", "attrs>=22.2.0"]
+dev = ["mdformat>=0.7.22", "pyright>=1.1.396", "ruff>=0.11.0", "typos>=1.30.2", "openapi-python-client>=0.26.2"]
 test = ["pytest>=8.3.5"]
 
 [tool.ruff]
diff --git a/uv.lock b/uv.lock
index 9c5d208..f405d04 100644
--- a/uv.lock
+++ b/uv.lock
@@ -69,17 +69,17 @@ name = "griptape-cloud-client"
 version = "0.1.0"
 source = { editable = "." }
 dependencies = [
+    { name = "attrs" },
     { name = "httpx" },
+    { name = "python-dateutil" },
     { name = "pyyaml" },
 ]
 
 [package.dev-dependencies]
 dev = [
-    { name = "attrs" },
     { name = "mdformat" },
     { name = "openapi-python-client" },
     { name = "pyright" },
-    { name = "python-dateutil" },
     { name = "ruff" },
     { name = "typos" },
 ]
@@ -89,17 +89,17 @@ test = [
 
 [package.metadata]
 requires-dist = [
+    { name = "attrs", specifier = ">=22.2.0" },
     { name = "httpx", specifier = ">=0.28.1" },
+    { name = "python-dateutil", specifier = ">=2.8.0" },
     { name = "pyyaml", specifier = ">=6.0.3" },
 ]
 
 [package.metadata.requires-dev]
 dev = [
-    { name = "attrs", specifier = ">=22.2.0" },
     { name = "mdformat", specifier = ">=0.7.22" },
     { name = "openapi-python-client", specifier = ">=0.26.2" },
     { name = "pyright", specifier = ">=1.1.396" },
-    { name = "python-dateutil", specifier = ">=2.8.0" },
     { name = "ruff", specifier = ">=0.11.0" },
     { name = "typos", specifier = ">=1.30.2" },
 ]