diff --git a/src/backend/pyproject.toml b/src/backend/pyproject.toml
index a776e886e..5ac9d0037 100644
--- a/src/backend/pyproject.toml
+++ b/src/backend/pyproject.toml
@@ -65,7 +65,7 @@ dependencies = [
     "pycrdt==0.14.1",
     "pydantic==2.13.4",
     "pydantic-ai-slim[openai,mistral,logfire,web]==1.107.1",
-    "PyJWT[crypto]==2.14.0",
+    "PyJWT[crypto]==2.15.0",
     "python-magic==0.4.27",
     "redis<6.0.0",
     "requests==2.34.2",
diff --git a/src/backend/uv.lock b/src/backend/uv.lock
index f37c7170c..05ca27348 100644
--- a/src/backend/uv.lock
+++ b/src/backend/uv.lock
@@ -1087,7 +1087,7 @@ requires-dist = [
     { name = "pydantic", specifier = "==2.13.4" },
     { name = "pydantic-ai-slim", extras = ["openai", "mistral", "logfire", "web"], specifier = "==1.107.1" },
     { name = "pyfakefs", marker = "extra == 'dev'", specifier = "==6.2.0" },
-    { name = "pyjwt", extras = ["crypto"], specifier = "==2.14.0" },
+    { name = "pyjwt", extras = ["crypto"], specifier = "==2.15.0" },
     { name = "pylint", marker = "extra == 'dev'", specifier = "==4.0.6" },
     { name = "pylint-django", marker = "extra == 'dev'", specifier = "==2.8.0" },
     { name = "pytest", marker = "extra == 'dev'", specifier = "==9.1.1" },
@@ -2025,11 +2025,11 @@ wheels = [
 
 [[package]]
 name = "pyjwt"
-version = "2.14.0"
+version = "2.15.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/af/c3/8a3b59c25070cc61dc517fbdfa5dc0904670c96f605cc69759dc09166b99/pyjwt-2.14.0.tar.gz", hash = "sha256:77283c83fb56ecf566a886c757a714bc83668e38156de2cce8263302f42e0b86", size = 113177, upload-time = "2026-09-11T13:11:54.638Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/02/a5/5197bfd06417837ac079921c66fa6393f1dea3557272a263cebfef69e432/pyjwt-2.15.0.tar.gz", hash = "sha256:b11c5f9791d7bf51c2b39a81ed669f6b2dbbd669df2942f6c60167e9e3d1abe4", size = 120513, upload-time = "2026-09-23T16:56:00.689Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/9c/97/672cb32ce0dfea44b740cb7b4f97038463b9cf7c0ead1aacf595572851d6/pyjwt-2.14.0-py3-none-any.whl", hash = "sha256:ad0cef71c756a56e74863c2919cf0985f72decbcfcb550ee2f422e7c62b5eedc", size = 32896, upload-time = "2026-09-11T13:11:53.409Z" },
+    { url = "https://files.pythonhosted.org/packages/e8/55/40e45bf052ee8ee12a4dfd785519660f8effa7b065442b91646ec6828619/pyjwt-2.15.0-py3-none-any.whl", hash = "sha256:7a3742debf6b879e912dbb9819ceec1594be812452b78c5f2e2dfc56564954f8", size = 33680, upload-time = "2026-09-23T16:55:59.241Z" },
 ]
 
 [package.optional-dependencies]