diff --git a/configs/mainnet.yaml b/configs/mainnet.yaml
index f204d1746..e62108b0a 100644
--- a/configs/mainnet.yaml
+++ b/configs/mainnet.yaml
@@ -50,8 +50,9 @@ CAPELLA_FORK_EPOCH: 194048  # April 12, 2023, 10:27:35pm UTC
 # Deneb
 DENEB_FORK_VERSION: 0x04000000
 DENEB_FORK_EPOCH: 18446744073709551615
-
-
+# EIP6110
+EIP6110_FORK_VERSION: 0x04000001
+EIP6110_FORK_EPOCH: 18446744073709551615
 
 
 # Time parameters
diff --git a/configs/minimal.yaml b/configs/minimal.yaml
index abecb1881..271a0c14a 100644
--- a/configs/minimal.yaml
+++ b/configs/minimal.yaml
@@ -49,6 +49,9 @@ CAPELLA_FORK_EPOCH: 18446744073709551615
 # DENEB
 DENEB_FORK_VERSION: 0x04000001
 DENEB_FORK_EPOCH: 18446744073709551615
+# EIP6110
+EIP6110_FORK_VERSION: 0x04000001
+EIP6110_FORK_EPOCH: 18446744073709551615
 
 
 # Time parameters
diff --git a/presets/mainnet/eip6110.yaml b/presets/mainnet/eip6110.yaml
new file mode 100644
index 000000000..16bf787d0
--- /dev/null
+++ b/presets/mainnet/eip6110.yaml
@@ -0,0 +1,6 @@
+# Mainnet preset - EIP6110
+
+# Execution
+# ---------------------------------------------------------------
+# 2**13 (= 8192) receipts
+MAX_DEPOSIT_RECEIPTS_PER_PAYLOAD: 8192
diff --git a/presets/minimal/eip6110.yaml b/presets/minimal/eip6110.yaml
new file mode 100644
index 000000000..7486aa16e
--- /dev/null
+++ b/presets/minimal/eip6110.yaml
@@ -0,0 +1,6 @@
+# Minimal preset - EIP6110
+
+# Execution
+# ---------------------------------------------------------------
+# [customized]
+MAX_DEPOSIT_RECEIPTS_PER_PAYLOAD: 4
diff --git a/tests/core/pyspec/eth2spec/test/context.py b/tests/core/pyspec/eth2spec/test/context.py
index 38e7f0b71..b859bf27c 100644
--- a/tests/core/pyspec/eth2spec/test/context.py
+++ b/tests/core/pyspec/eth2spec/test/context.py
@@ -8,11 +8,13 @@ from eth2spec.altair import mainnet as spec_altair_mainnet, minimal as spec_alta
 from eth2spec.bellatrix import mainnet as spec_bellatrix_mainnet, minimal as spec_bellatrix_minimal
 from eth2spec.capella import mainnet as spec_capella_mainnet, minimal as spec_capella_minimal
 from eth2spec.deneb import mainnet as spec_deneb_mainnet, minimal as spec_deneb_minimal
+from eth2spec.eip6110 import mainnet as spec_eip6110_mainnet, minimal as spec_eip6110_minimal
 from eth2spec.utils import bls
 
 from .exceptions import SkippedTest
 from .helpers.constants import (
     PHASE0, ALTAIR, BELLATRIX, CAPELLA, DENEB,
+    EIP6110,
     MINIMAL, MAINNET,
     ALL_PHASES,
     ALL_FORK_UPGRADES,
@@ -79,13 +81,15 @@ spec_targets: Dict[PresetBaseName, Dict[SpecForkName, Spec]] = {
         BELLATRIX: spec_bellatrix_minimal,
         CAPELLA: spec_capella_minimal,
         DENEB: spec_deneb_minimal,
+        EIP6110: spec_eip6110_minimal,
     },
     MAINNET: {
         PHASE0: spec_phase0_mainnet,
         ALTAIR: spec_altair_mainnet,
         BELLATRIX: spec_bellatrix_mainnet,
         CAPELLA: spec_capella_mainnet,
-        DENEB: spec_deneb_mainnet
+        DENEB: spec_deneb_mainnet,
+        EIP6110: spec_eip6110_mainnet,
     },
 }
 
diff --git a/tests/core/pyspec/eth2spec/test/helpers/constants.py b/tests/core/pyspec/eth2spec/test/helpers/constants.py
index 0d31adb43..83e7e40db 100644
--- a/tests/core/pyspec/eth2spec/test/helpers/constants.py
+++ b/tests/core/pyspec/eth2spec/test/helpers/constants.py
@@ -9,24 +9,25 @@ PHASE0 = SpecForkName('phase0')
 ALTAIR = SpecForkName('altair')
 BELLATRIX = SpecForkName('bellatrix')
 CAPELLA = SpecForkName('capella')
+DENEB = SpecForkName('deneb')
 
 # Experimental phases (not included in default "ALL_PHASES"):
 SHARDING = SpecForkName('sharding')
 CUSTODY_GAME = SpecForkName('custody_game')
 DAS = SpecForkName('das')
-DENEB = SpecForkName('deneb')
+EIP6110 = SpecForkName('eip6110')
 
 # The forks that pytest can run with.
 ALL_PHASES = (
     # Formal forks
-    PHASE0, ALTAIR, BELLATRIX, CAPELLA,
+    PHASE0, ALTAIR, BELLATRIX, CAPELLA, DENEB,
     # Experimental patches
-    DENEB,
+    EIP6110,
 )
 # The forks that output to the test vectors.
-TESTGEN_FORKS = (PHASE0, ALTAIR, BELLATRIX, CAPELLA, DENEB)
+TESTGEN_FORKS = (PHASE0, ALTAIR, BELLATRIX, CAPELLA, DENEB, EIP6110)
 
-# TODO: no DENEB fork tests now. Should add when we figure out the content of Capella.
+# TODO: no EIP6110 fork tests now.
 ALL_FORK_UPGRADES = {
     # pre_fork_name: post_fork_name
     PHASE0: ALTAIR,
@@ -41,7 +42,7 @@ AFTER_CAPELLA_UPGRADES = {key: value for key, value in ALL_FORK_UPGRADES.items()
                           if key not in [PHASE0, ALTAIR]}
 AFTER_CAPELLA_PRE_POST_FORKS = AFTER_CAPELLA_UPGRADES.items()
 AFTER_DENEB_UPGRADES = {key: value for key, value in ALL_FORK_UPGRADES.items()
-                        if key not in [PHASE0, ALTAIR, BELLATRIX]}
+                        if key not in [PHASE0, ALTAIR, BELLATRIX, EIP6110]}
 AFTER_DENEB_PRE_POST_FORKS = AFTER_DENEB_UPGRADES.items()
 
 #
diff --git a/tests/core/pyspec/eth2spec/test/helpers/forks.py b/tests/core/pyspec/eth2spec/test/helpers/forks.py
index be3103e67..e6320cc9b 100644
--- a/tests/core/pyspec/eth2spec/test/helpers/forks.py
+++ b/tests/core/pyspec/eth2spec/test/helpers/forks.py
@@ -1,9 +1,12 @@
 from .constants import (
     PHASE0, ALTAIR, BELLATRIX, CAPELLA, DENEB,
+    EIP6110,
 )
 
 
 def is_post_fork(a, b):
+    if a == EIP6110:
+        return b in [PHASE0, ALTAIR, BELLATRIX, CAPELLA, EIP6110]
     if a == DENEB:
         return b in [PHASE0, ALTAIR, BELLATRIX, CAPELLA, DENEB]
     if a == CAPELLA:
@@ -31,3 +34,7 @@ def is_post_capella(spec):
 
 def is_post_deneb(spec):
     return is_post_fork(spec.fork, DENEB)
+
+
+def is_post_eip6110(spec):
+    return is_post_fork(spec.fork, EIP6110)