diff --git a/api/pyproject.toml b/api/pyproject.toml
index 44ed56d6..52223c26 100644
--- a/api/pyproject.toml
+++ b/api/pyproject.toml
@@ -20,5 +20,5 @@ test = [
     "mypy==1.13.*",
     "pytest==8.3.*",
     "pytest-cov==6.0.*",
-    "httpx==0.27.*"
+    "httpx==0.28.*"
 ]
diff --git a/api/tests/requirements.txt b/api/tests/requirements.txt
index c1a35104..f3262d4b 100644
--- a/api/tests/requirements.txt
+++ b/api/tests/requirements.txt
@@ -183,9 +183,9 @@ httptools==0.6.4 \
     --hash=sha256:f9eb89ecf8b290f2e293325c646a211ff1c2493222798bb80a530c5e7502494f \
     --hash=sha256:fc411e1c0a7dcd2f902c7c48cf079947a7e65b5485dea9decb82b9105ca71a43
     # via uvicorn
-httpx==0.27.2 \
-    --hash=sha256:7bb2708e112d8fdd7829cd4243970f0c223274051cb35ee80c03301ee29a3df0 \
-    --hash=sha256:f7c2be1d2f3c3c3160d441802406b206c2b76f5947b11115e6df10c6c65e66c2
+httpx==0.28.1 \
+    --hash=sha256:75e98c5f16b0f35b567856f597f06ff2270a374470a5c2392242528e3e3e42fc \
+    --hash=sha256:d909fcccc110f8c7faf814ca82a9a4d816bc5a6dbfea25d6591d6985b8ba59ad
     # via
     #   fastapi
     #   pavi-api (pyproject.toml)