diff --git a/docs/changelogs/0.8.x.md b/docs/changelogs/0.8.x.md
index b11c1b5..42de3ec 100644
--- a/docs/changelogs/0.8.x.md
+++ b/docs/changelogs/0.8.x.md
@@ -22,6 +22,10 @@ All notable changes in the **0.8.x** release series are documented here.
   and `--version`, keep the run itself on stdout, return benchmark-safe exit
   codes, and preserve API and transport error text on stderr.
 
+### Fixed
+- Declare `httpx` as a direct runtime dependency so clean and containerized
+  installations do not rely on `anthropic` to install it transitively.
+
 <!--
 When cutting a release, copy the relevant items from [Unreleased] into a new
 version section above it, e.g.:
diff --git a/pyproject.toml b/pyproject.toml
index cf7825b..7ae167a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ classifiers = [
 ]
 dependencies = [
     "anthropic>=0.112.0",
+    "httpx>=0.25.0",
 ]
 
 [project.urls]
diff --git a/uv.lock b/uv.lock
index 261dcd3..a65ab39 100644
--- a/uv.lock
+++ b/uv.lock
@@ -192,6 +192,7 @@ name = "nanopycodeagent"
 source = { editable = "." }
 dependencies = [
     { name = "anthropic" },
+    { name = "httpx" },
 ]
 
 [package.dev-dependencies]
@@ -200,7 +201,10 @@ dev = [
 ]
 
 [package.metadata]
-requires-dist = [{ name = "anthropic", specifier = ">=0.112.0" }]
+requires-dist = [
+    { name = "anthropic", specifier = ">=0.112.0" },
+    { name = "httpx", specifier = ">=0.25.0" },
+]
 
 [package.metadata.requires-dev]
 dev = [{ name = "pytest", specifier = ">=9.1.1" }]