diff --git a/book/src/help_vc.md b/book/src/help_vc.md
index 4647780ea8..436e9712a1 100644
--- a/book/src/help_vc.md
+++ b/book/src/help_vc.md
@@ -200,6 +200,11 @@ Flags:
           If present, do not configure the system allocator. Providing this flag
           will generally increase memory usage, it should only be provided when
           debugging specific memory allocation issues.
+      --disable-proposer-duties-v2
+          Fetch proposer duties using the v1 beacon node endpoint instead of v2.
+          The v1 endpoint reports an incorrect dependent root which causes
+          spurious proposer duty re-org warnings. Only enable this flag if your
+          beacon node does not serve the v2 proposer duties endpoint.
       --disable-slashing-protection-web3signer
           Disable Lighthouse's slashing protection for all web3signer keys. This
           can reduce the I/O burden on the VC but is only safe if slashing
diff --git a/lighthouse/tests/validator_client.rs b/lighthouse/tests/validator_client.rs
index 6fd5a6538c..8377dac315 100644
--- a/lighthouse/tests/validator_client.rs
+++ b/lighthouse/tests/validator_client.rs
@@ -129,6 +129,21 @@ fn disable_auto_discover_flag() {
         .with_config(|config| assert!(config.disable_auto_discover));
 }
 
+#[test]
+fn disable_proposer_duties_v2_default() {
+    CommandLineTest::new()
+        .run()
+        .with_config(|config| assert!(!config.disable_proposer_duties_v2));
+}
+
+#[test]
+fn disable_proposer_duties_v2_flag() {
+    CommandLineTest::new()
+        .flag("disable-proposer-duties-v2", None)
+        .run()
+        .with_config(|config| assert!(config.disable_proposer_duties_v2));
+}
+
 #[test]
 fn init_slashing_protections_flag() {
     CommandLineTest::new()
diff --git a/validator_client/src/cli.rs b/validator_client/src/cli.rs
index 0eb0e9e5dd..2cff269970 100644
--- a/validator_client/src/cli.rs
+++ b/validator_client/src/cli.rs
@@ -105,6 +105,17 @@ pub struct ValidatorClient {
     )]
     pub disable_attesting: bool,
 
+    #[clap(
+        long,
+        help = "Fetch proposer duties using the v1 beacon node endpoint instead of v2. The v1 \
+                endpoint reports an incorrect dependent root which causes spurious proposer duty \
+                re-org warnings. Only enable this flag if your beacon node does not serve the v2 \
+                proposer duties endpoint.",
+        display_order = 0,
+        help_heading = FLAG_HEADER
+    )]
+    pub disable_proposer_duties_v2: bool,
+
     #[clap(
         long,
         help = "If present, the validator client will use longer timeouts for requests \
diff --git a/validator_client/src/config.rs b/validator_client/src/config.rs
index d68a78b705..08105578c9 100644
--- a/validator_client/src/config.rs
+++ b/validator_client/src/config.rs
@@ -92,6 +92,8 @@ pub struct Config {
     #[serde(flatten)]
     pub initialized_validators: InitializedValidatorsConfig,
     pub disable_attesting: bool,
+    /// Fetch proposer duties using the v1 endpoint instead of v2.
+    pub disable_proposer_duties_v2: bool,
 }
 
 impl Default for Config {
@@ -139,6 +141,7 @@ impl Default for Config {
             distributed: false,
             initialized_validators: <_>::default(),
             disable_attesting: false,
+            disable_proposer_duties_v2: false,
         }
     }
 }
@@ -402,6 +405,7 @@ impl Config {
             };
 
         config.disable_attesting = validator_client_config.disable_attesting;
+        config.disable_proposer_duties_v2 = validator_client_config.disable_proposer_duties_v2;
 
         Ok(config)
     }
diff --git a/validator_client/src/lib.rs b/validator_client/src/lib.rs
index 71d9333493..9680189b1a 100644
--- a/validator_client/src/lib.rs
+++ b/validator_client/src/lib.rs
@@ -502,6 +502,7 @@ impl<E: EthSpec> ProductionValidatorClient<E> {
                 .attestation_selection_proof_config(attestation_selection_proof_config)
                 .sync_selection_proof_config(sync_selection_proof_config)
                 .disable_attesting(config.disable_attesting)
+                .disable_proposer_duties_v2(config.disable_proposer_duties_v2)
                 .build()?,
         );
 
diff --git a/validator_client/validator_services/src/duties_service.rs b/validator_client/validator_services/src/duties_service.rs
index 19a3936799..5fe413a216 100644
--- a/validator_client/validator_services/src/duties_service.rs
+++ b/validator_client/validator_services/src/duties_service.rs
@@ -305,6 +305,7 @@ pub struct DutiesServiceBuilder<S, T> {
     /// Create sync selection proof config
     sync_selection_proof_config: SelectionProofConfig,
     disable_attesting: bool,
+    disable_proposer_duties_v2: bool,
 }
 
 impl<S, T> Default for DutiesServiceBuilder<S, T> {
@@ -325,6 +326,7 @@ impl<S, T> DutiesServiceBuilder<S, T> {
             attestation_selection_proof_config: SelectionProofConfig::default(),
             sync_selection_proof_config: SelectionProofConfig::default(),
             disable_attesting: false,
+            disable_proposer_duties_v2: false,
         }
     }
 
@@ -382,6 +384,11 @@ impl<S, T> DutiesServiceBuilder<S, T> {
         self
     }
 
+    pub fn disable_proposer_duties_v2(mut self, disable_proposer_duties_v2: bool) -> Self {
+        self.disable_proposer_duties_v2 = disable_proposer_duties_v2;
+        self
+    }
+
     pub fn build(self) -> Result<DutiesService<S, T>, String> {
         Ok(DutiesService {
             attesters: Default::default(),
@@ -405,6 +412,7 @@ impl<S, T> DutiesServiceBuilder<S, T> {
             enable_high_validator_count_metrics: self.enable_high_validator_count_metrics,
             selection_proof_config: self.attestation_selection_proof_config,
             disable_attesting: self.disable_attesting,
+            disable_proposer_duties_v2: self.disable_proposer_duties_v2,
         })
     }
 }
@@ -437,6 +445,11 @@ pub struct DutiesService<S, T> {
     /// Pass the config for distributed or non-distributed mode.
     pub selection_proof_config: SelectionProofConfig,
     pub disable_attesting: bool,
+    /// Use the v1 proposer duties endpoint instead of v2. The v1 endpoint reports an incorrect
+    /// dependent root, causing spurious "Proposer duties re-org" warnings. This flag exists for
+    /// compatibility with beacon nodes that do not yet serve the v2 endpoint and can be removed
+    /// after Gloas.
+    pub disable_proposer_duties_v2: bool,
 }
 
 impl<S: ValidatorStore, T: SlotClock + 'static> DutiesService<S, T> {
@@ -1709,6 +1722,7 @@ async fn fetch_and_store_proposer_duties<S: ValidatorStore, T: SlotClock + 'stat
     epoch: Epoch,
     local_pubkeys: &HashSet<PublicKeyBytes>,
 ) {
+    let use_v2 = !duties_service.disable_proposer_duties_v2;
     let download_result = duties_service
         .beacon_nodes
         .first_success(|beacon_node| async move {
@@ -1716,7 +1730,14 @@ async fn fetch_and_store_proposer_duties<S: ValidatorStore, T: SlotClock + 'stat
                 &validator_metrics::DUTIES_SERVICE_TIMES,
                 &[validator_metrics::PROPOSER_DUTIES_HTTP_GET],
             );
-            beacon_node.get_validator_duties_proposer(epoch).await
+            // Prefer the v2 endpoint, which reports the correct dependent root. The v1 endpoint
+            // returns an incorrect dependent root, leading to spurious "Proposer duties re-org"
+            // warnings.
+            if use_v2 {
+                beacon_node.get_validator_duties_proposer_v2(epoch).await
+            } else {
+                beacon_node.get_validator_duties_proposer(epoch).await
+            }
         })
         .await;