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/requirements.txt b/api/requirements.txt
index 430a8564..76d8d838 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -108,9 +108,9 @@ httptools==0.6.4 \
     --hash=sha256:f9eb89ecf8b290f2e293325c646a211ff1c2493222798bb80a530c5e7502494f \
     --hash=sha256:fc411e1c0a7dcd2f902c7c48cf079947a7e65b5485dea9decb82b9105ca71a43
     # via uvicorn
-httpx==0.27.2 \
-    --hash=sha256:7bb2708e112d8fdd7829cd4243970f0c223274051cb35ee80c03301ee29a3df0 \
-    --hash=sha256:f7c2be1d2f3c3c3160d441802406b206c2b76f5947b11115e6df10c6c65e66c2
+httpx==0.28.0 \
+    --hash=sha256:0858d3bab51ba7e386637f22a61d8ccddaeec5f3fe4209da3a6168dbb91573e0 \
+    --hash=sha256:dc0b419a0cfeb6e8b34e85167c0da2671206f5095f1baa9663d23bcfd6b535fc
     # via fastapi
 idna==3.10 \
     --hash=sha256:12f65c9b470abda6dc35cf8e63cc574b1c52b11df2c86030af0ac09b01b13ea9 \
diff --git a/api/tests/requirements.txt b/api/tests/requirements.txt
index 06e25d2e..8e864bbd 100644
--- a/api/tests/requirements.txt
+++ b/api/tests/requirements.txt
@@ -182,9 +182,9 @@ httptools==0.6.4 \
     --hash=sha256:f9eb89ecf8b290f2e293325c646a211ff1c2493222798bb80a530c5e7502494f \
     --hash=sha256:fc411e1c0a7dcd2f902c7c48cf079947a7e65b5485dea9decb82b9105ca71a43
     # via uvicorn
-httpx==0.27.2 \
-    --hash=sha256:7bb2708e112d8fdd7829cd4243970f0c223274051cb35ee80c03301ee29a3df0 \
-    --hash=sha256:f7c2be1d2f3c3c3160d441802406b206c2b76f5947b11115e6df10c6c65e66c2
+httpx==0.28.0 \
+    --hash=sha256:0858d3bab51ba7e386637f22a61d8ccddaeec5f3fe4209da3a6168dbb91573e0 \
+    --hash=sha256:dc0b419a0cfeb6e8b34e85167c0da2671206f5095f1baa9663d23bcfd6b535fc
     # via
     #   fastapi
     #   pavi-api (pyproject.toml)