diff --git a/apis/eventstream/index.yaml b/apis/eventstream/index.yaml
index cb89283d..68b6cf86 100644
--- a/apis/eventstream/index.yaml
+++ b/apis/eventstream/index.yaml
@@ -35,10 +35,10 @@ get:
             description: https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#Event_stream_format
           examples:
             head:
-              description: The node has finished processing, resulting in a new head
+              description: The node has finished processing, resulting in a new head. previous_duty_dependent_root is `get_block_root_at_slot(state, compute_start_slot_at_epoch(epoch - 1) - 1)` and current_duty_dependent_root is `get_block_root_at_slot(state, compute_start_slot_at_epoch(epoch) - 1)`. Both dependent roots use the genesis block root in the case of underflow.
               value: |
                 event: head\n
-                data: "{\"slot\": \"10\", \"block\": \"0x9a2fefd2fdb57f74993c7780ea5b9030d2897b615b89f808011ca5aebed54eaf\", \"state\":\"0x600e852a08c1200654ddf11025f1ceacb3c2e74bdd5c630cde0838b2591b69f9\", \"epoch_transition\": false}"\n
+                data: "{\"slot\": \"10\", \"block\": \"0x9a2fefd2fdb57f74993c7780ea5b9030d2897b615b89f808011ca5aebed54eaf\", \"state\":\"0x600e852a08c1200654ddf11025f1ceacb3c2e74bdd5c630cde0838b2591b69f9\", \"epoch_transition\": false, \"previous_duty_dependent_root\": \"0x5e0043f107cb57913498fbf2f99ff55e730bf1e151f02f221e977c91a90a0e91\", \"current_duty_dependent_root\": \"0x5e0043f107cb57913498fbf2f99ff55e730bf1e151f02f221e977c91a90a0e91\"}"\n
                 \n
             block:
               description: The node has received a valid block (from P2P or API)
diff --git a/apis/validator/duties/attester.yaml b/apis/validator/duties/attester.yaml
index 379bac79..e3ffd806 100644
--- a/apis/validator/duties/attester.yaml
+++ b/apis/validator/duties/attester.yaml
@@ -9,7 +9,17 @@ post:
 
     Duties should only need to be checked once per epoch,
     however a chain reorganization (of > MIN_SEED_LOOKAHEAD epochs) could occur,
-    resulting in a change of duties. For full safety, you should monitor chain reorganizations events."
+    resulting in a change of duties. For full safety, you should monitor head events and confirm the
+    dependent root in this response matches:
+
+      - event.previous_duty_dependent_root when `compute_epoch_at_slot(event.slot) == epoch`
+
+      - event.current_duty_dependent_root when `compute_epoch_at_slot(event.slot) + 1 == epoch`
+
+      - event.block otherwise
+
+    The dependent_root value is `get_block_root_at_slot(state, compute_start_slot_at_epoch(epoch - 1) - 1)`
+    or the genesis block root in the case of underflow."
   parameters:
     - name: epoch
       description: "Should only be allowed 1 epoch ahead"
@@ -37,6 +47,8 @@ post:
             title: GetAttesterDutiesResponse
             type: object
             properties:
+              dependent_root:
+                $ref: "../../../beacon-node-oapi.yaml#/components/schemas/DependentRoot"
               data:
                 type: array
                 items:
diff --git a/apis/validator/duties/proposer.yaml b/apis/validator/duties/proposer.yaml
index 4f56bf96..d958e621 100644
--- a/apis/validator/duties/proposer.yaml
+++ b/apis/validator/duties/proposer.yaml
@@ -4,7 +4,18 @@ get:
     - Validator
   summary: "Get block proposers duties"
   operationId: "getProposerDuties"
-  description: "Request beacon node to provide all validators that are scheduled to propose a block in the given epoch"
+  description: "Request beacon node to provide all validators that are scheduled to propose a block in the given epoch.
+
+    Duties should only need to be checked once per epoch,
+    however a chain reorganization could occur that results in a change of duties. For full safety,
+    you should monitor head events and confirm the dependent root in this response matches:
+
+     - event.current_duty_dependent_root when `compute_epoch_at_slot(event.slot) == epoch`
+
+     - event.block otherwise
+
+    The dependent_root value is `get_block_root_at_slot(state, compute_start_slot_at_epoch(epoch) - 1)`
+    or the genesis block root in the case of underflow."
   parameters:
     - name: epoch
       in: path
@@ -20,6 +31,8 @@ get:
             title: GetProposerDutiesResponse
             type: object
             properties:
+              dependent_root:
+                $ref: "../../../beacon-node-oapi.yaml#/components/schemas/DependentRoot"
               data:
                 type: array
                 items:
diff --git a/beacon-node-oapi.yaml b/beacon-node-oapi.yaml
index b30bb037..b418be82 100644
--- a/beacon-node-oapi.yaml
+++ b/beacon-node-oapi.yaml
@@ -178,6 +178,8 @@ components:
       $ref: './types/primitive.yaml#/Version'
     ForkVersion:
       $ref: './types/primitive.yaml#/ForkVersion'
+    DependentRoot:
+      $ref: './types/primitive.yaml#/DependentRoot'
     Root:
       $ref: './types/primitive.yaml#/Root'
     Hex:
diff --git a/types/primitive.yaml b/types/primitive.yaml
index e1386c45..a6fc7f9c 100644
--- a/types/primitive.yaml
+++ b/types/primitive.yaml
@@ -28,6 +28,11 @@ Uint64:
   type: string
   example: "1"
 
+DependentRoot:
+  allOf:
+    - $ref: "./primitive.yaml#/Root"
+    - description: "The block root that this response is dependent on."
+
 Root:
   type: string
   example: "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"