diff --git a/pyproject.toml b/pyproject.toml
index 61d8603..c15168a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,6 +9,7 @@ authors = [
 requires-python = ">=3.14"
 dependencies = [
     "fastapi[standard]==0.142.2",
+    "httpx>=0.28.1",
     "pydantic==2.13.5",
     "sensapex==1.504.3",
     "typer>=0.27.2",
diff --git a/uv.lock b/uv.lock
index baf54d5..2001b48 100644
--- a/uv.lock
+++ b/uv.lock
@@ -278,6 +278,7 @@ version = "5.1.0.dev2"
 source = { editable = "." }
 dependencies = [
     { name = "fastapi", extra = ["standard"] },
+    { name = "httpx" },
     { name = "pydantic" },
     { name = "sensapex" },
     { name = "typer" },
@@ -298,6 +299,7 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "fastapi", extras = ["standard"], specifier = "==0.142.2" },
+    { name = "httpx", specifier = ">=0.28.1" },
     { name = "pydantic", specifier = "==2.13.5" },
     { name = "sensapex", specifier = "==1.504.3" },
     { name = "typer", specifier = ">=0.27.2" },