diff --git a/changelog/james-prysm_update-default-gas-limit.md b/changelog/james-prysm_update-default-gas-limit.md
new file mode 100644
index 000000000000..90e93c943484
--- /dev/null
+++ b/changelog/james-prysm_update-default-gas-limit.md
@@ -0,0 +1,3 @@
+### Changed
+
+- Updated default gas limit from 30M to 36M
\ No newline at end of file
diff --git a/config/params/mainnet_config.go b/config/params/mainnet_config.go
index 28d0ae808a9a..47c5911c1dd8 100644
--- a/config/params/mainnet_config.go
+++ b/config/params/mainnet_config.go
@@ -267,7 +267,7 @@ var mainnetBeaconConfig = &BeaconChainConfig{
 	BytesPerLogsBloom:                256,
 	MaxExtraDataBytes:                32,
 	EthBurnAddressHex:                "0x0000000000000000000000000000000000000000",
-	DefaultBuilderGasLimit:           uint64(30000000),
+	DefaultBuilderGasLimit:           uint64(36000000),
 
 	// Mevboost circuit breaker
 	MaxBuilderConsecutiveMissedSlots: 3,
diff --git a/config/proposer/loader/testdata/good-prepare-beacon-proposer-config-multiple.json b/config/proposer/loader/testdata/good-prepare-beacon-proposer-config-multiple.json
index 34056751847f..b255d4b1ef5b 100644
--- a/config/proposer/loader/testdata/good-prepare-beacon-proposer-config-multiple.json
+++ b/config/proposer/loader/testdata/good-prepare-beacon-proposer-config-multiple.json
@@ -4,7 +4,7 @@
       "fee_recipient": "0x50155530FCE8a85ec7055A5F8b2bE214B3DaeFd3",
       "builder": {
         "enabled": true,
-        "gas_limit": "30000000"
+        "gas_limit": "36000000"
       }
     },
     "0xb057816155ad77931185101128655c0191bd0214c201ca48ed887f6c4c6adf334070efcd75140eada5ac83a92506dd7b": {
diff --git a/config/proposer/loader/testdata/good-prepare-beacon-proposer-config.yaml b/config/proposer/loader/testdata/good-prepare-beacon-proposer-config.yaml
index 9c666828867d..fd02133c1b31 100644
--- a/config/proposer/loader/testdata/good-prepare-beacon-proposer-config.yaml
+++ b/config/proposer/loader/testdata/good-prepare-beacon-proposer-config.yaml
@@ -9,4 +9,4 @@ default_config:
   fee_recipient: '0x6e35733c5af9B61374A128e6F85f553aF09ff89A'
   builder:
     enabled: false
-    gas_limit: '30000000'
\ No newline at end of file
+    gas_limit: '36000000'
\ No newline at end of file