diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index a4de58c..eaa06b8 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -30,6 +30,6 @@ dependencies = [
 [dependency-groups]
 dev = [
     "requests-mock==1.8.0",
-    "pytest==8.3.4",
+    "pytest==9.0.3",
     "pytest-cov==6.0.0"
 ]
diff --git a/backend/uv.lock b/backend/uv.lock
index 2a76493..5551bfb 100644
--- a/backend/uv.lock
+++ b/backend/uv.lock
@@ -623,7 +623,7 @@ requires-dist = [
 
 [package.metadata.requires-dev]
 dev = [
-    { name = "pytest", specifier = "==8.3.4" },
+    { name = "pytest", specifier = "==9.0.3" },
     { name = "pytest-cov", specifier = "==6.0.0" },
     { name = "requests-mock", specifier = "==1.8.0" },
 ]
@@ -1099,17 +1099,18 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.3.4"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
     { name = "iniconfig" },
     { name = "packaging" },
     { name = "pluggy" },
+    { name = "pygments" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/05/35/30e0d83068951d90a01852cb1cef56e5d8a09d20c7f511634cc2f7e0372a/pytest-8.3.4.tar.gz", hash = "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761", size = 1445919, upload-time = "2024-12-01T12:54:25.98Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/7d/0d/549bd94f1a0a402dc8cf64563a117c0f3765662e2e668477624baeec44d5/pytest-9.0.3.tar.gz", hash = "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c", size = 1572165, upload-time = "2026-04-07T17:16:18.027Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/11/92/76a1c94d3afee238333bc0a42b82935dd8f9cf8ce9e336ff87ee14d9e1cf/pytest-8.3.4-py3-none-any.whl", hash = "sha256:50e16d954148559c9a74109af1eaf0c945ba2d8f30f0a3d3335edde19788b6f6", size = 343083, upload-time = "2024-12-01T12:54:19.735Z" },
+    { url = "https://files.pythonhosted.org/packages/d4/24/a372aaf5c9b7208e7112038812994107bc65a84cd00e0354a88c2c77a617/pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9", size = 375249, upload-time = "2026-04-07T17:16:16.13Z" },
 ]
 
 [[package]]