diff --git a/changelog/marius-builder-gas-limit.md b/changelog/marius-builder-gas-limit.md
new file mode 100644
index 0000000000..5c871d19e8
--- /dev/null
+++ b/changelog/marius-builder-gas-limit.md
@@ -0,0 +1,2 @@
+### Changed 
+- Bump builder default gas limit from `45000000` (45 MGas) to `60000000` (60 MGas)
\ No newline at end of file
diff --git a/config/params/mainnet_config.go b/config/params/mainnet_config.go
index fd2997730a..68a2bd958b 100644
--- a/config/params/mainnet_config.go
+++ b/config/params/mainnet_config.go
@@ -268,7 +268,7 @@ var mainnetBeaconConfig = &BeaconChainConfig{
 	BytesPerLogsBloom:                256,
 	MaxExtraDataBytes:                32,
 	EthBurnAddressHex:                "0x0000000000000000000000000000000000000000",
-	DefaultBuilderGasLimit:           uint64(45000000),
+	DefaultBuilderGasLimit:           uint64(60000000),
 
 	// 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 a290f98eb0..cfb0837fcf 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": "45000000"
+        "gas_limit": "60000000"
       }
     },
     "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 5585d913d2..0fe32f7111 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: '45000000'
\ No newline at end of file
+    gas_limit: '60000000'
\ No newline at end of file