diff --git a/src/backend/requirements.in b/src/backend/requirements.in
index ce5f36d4..33e72c09 100644
--- a/src/backend/requirements.in
+++ b/src/backend/requirements.in
@@ -1,4 +1,4 @@
-fastapi>=0.110.2,<0.119.0
+fastapi>=0.136.3,<0.137.0
 uvicorn>=0.46.0
 python-multipart>=0.0.27
 flask-cors>=5.0.0
diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index 173eb6a0..b282b142 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -134,6 +134,10 @@ alembic==1.18.4 \
     # via
     #   -r src/backend/requirements.in
     #   mlflow
+annotated-doc==0.0.4 \
+    --hash=sha256:571ac1dc6991c450b25a9c2d84a3705e2ae7a53467b5d111c24fa8baabbed320 \
+    --hash=sha256:fbcda96e87e9c92ad167c2e53839e57503ecfda18804ea28102353485033faa4
+    # via fastapi
 annotated-types==0.7.0 \
     --hash=sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53 \
     --hash=sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89
@@ -566,9 +570,9 @@ exceptiongroup==1.3.1 \
     --hash=sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219 \
     --hash=sha256:a7a39a3bd276781e98394987d3a5701d0c4edffb633bb7a5144577f82c773598
     # via anyio
-fastapi==0.118.3 \
-    --hash=sha256:5bf36d9bb0cd999e1aefcad74985a6d6a1fc3a35423d497f9e1317734633411d \
-    --hash=sha256:8b9673dc083b4b9d3d295d49ba1c0a2abbfb293d34ba210fd9b0a90d5f39981e
+fastapi==0.136.3 \
+    --hash=sha256:3d2a69bdf04b7e9f3afa292c3bc7a98816bbfafa10bc9b45f3f3700d2f761620 \
+    --hash=sha256:e487fae93ad408e6f47641ee4dfe389864fd7bec92e547ea8498fc13f43e83ab
     # via
     #   -r src/backend/requirements.in
     #   mlflow-skinny
@@ -2745,6 +2749,7 @@ typing-inspection==0.4.2 \
     --hash=sha256:4ed1cacbdc298c220f1bd249ed5287caa16f34d44ef4e9c3d0cbad5b521545e7 \
     --hash=sha256:ba561c48a67c5958007083d386c3295464928b01faa735ab8547c5692e87f464
     # via
+    #   fastapi
     #   pydantic
     #   pydantic-settings
 tzdata==2026.1 \
diff --git a/src/requirements.txt b/src/requirements.txt
index 8b962b7f..6b12414d 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -134,6 +134,10 @@ alembic==1.18.4 \
     # via
     #   -r src/backend/requirements.in
     #   mlflow
+annotated-doc==0.0.4 \
+    --hash=sha256:571ac1dc6991c450b25a9c2d84a3705e2ae7a53467b5d111c24fa8baabbed320 \
+    --hash=sha256:fbcda96e87e9c92ad167c2e53839e57503ecfda18804ea28102353485033faa4
+    # via fastapi
 annotated-types==0.7.0 \
     --hash=sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53 \
     --hash=sha256:aff07c09a53a08bc8cfccb9c85b05f1aa9a2a6f23728d790723543408344ce89
@@ -633,9 +637,9 @@ exceptiongroup==1.3.1 \
     --hash=sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219 \
     --hash=sha256:a7a39a3bd276781e98394987d3a5701d0c4edffb633bb7a5144577f82c773598
     # via anyio
-fastapi==0.118.3 \
-    --hash=sha256:5bf36d9bb0cd999e1aefcad74985a6d6a1fc3a35423d497f9e1317734633411d \
-    --hash=sha256:8b9673dc083b4b9d3d295d49ba1c0a2abbfb293d34ba210fd9b0a90d5f39981e
+fastapi==0.136.3 \
+    --hash=sha256:3d2a69bdf04b7e9f3afa292c3bc7a98816bbfafa10bc9b45f3f3700d2f761620 \
+    --hash=sha256:e487fae93ad408e6f47641ee4dfe389864fd7bec92e547ea8498fc13f43e83ab
     # via
     #   -r src/backend/requirements.in
     #   mlflow-skinny
@@ -2974,6 +2978,7 @@ typing-inspection==0.4.2 \
     --hash=sha256:4ed1cacbdc298c220f1bd249ed5287caa16f34d44ef4e9c3d0cbad5b521545e7 \
     --hash=sha256:ba561c48a67c5958007083d386c3295464928b01faa735ab8547c5692e87f464
     # via
+    #   fastapi
     #   pydantic
     #   pydantic-settings
 tzdata==2026.1 \