diff --git a/src/Nethermind/Chains/chiado.json b/src/Nethermind/Chains/chiado.json
index 0ed220833d9a..60a243dbe2c5 100644
--- a/src/Nethermind/Chains/chiado.json
+++ b/src/Nethermind/Chains/chiado.json
@@ -91,14 +91,6 @@
     "eip7623TransitionTimestamp": "0x67c96e4c",
     "eip7702TransitionTimestamp": "0x67c96e4c",
     "eip4844FeeCollectorTransitionTimestamp": "0x67c96e4c",
-    "eip7594TransitionTimestamp": "0x68f74e4c",
-    "eip7823TransitionTimestamp": "0x68f74e4c",
-    "eip7825TransitionTimestamp": "0x68f74e4c",
-    "eip7883TransitionTimestamp": "0x68f74e4c",
-    "eip7918TransitionTimestamp": "0x68f74e4c",
-    "eip7934TransitionTimestamp": "0x68f74e4c",
-    "eip7939TransitionTimestamp": "0x68f74e4c",
-    "eip7951TransitionTimestamp": "0x68f74e4c",
     "depositContractAddress": "0xb97036a26259b7147018913bd58a774cf91acf25",
     "blobSchedule": [
       {
diff --git a/src/Nethermind/Nethermind.Network.Test/ForkInfoTests.cs b/src/Nethermind/Nethermind.Network.Test/ForkInfoTests.cs
index 1ea0081cdc6d..f377009b8514 100644
--- a/src/Nethermind/Nethermind.Network.Test/ForkInfoTests.cs
+++ b/src/Nethermind/Nethermind.Network.Test/ForkInfoTests.cs
@@ -179,10 +179,11 @@ public void Fork_id_and_hash_as_expected_on_gnosis(long head, ulong headTimestam
     [TestCase(3945317, ChiadoSpecProvider.ShanghaiTimestamp, "0xa15a4252", ChiadoSpecProvider.CancunTimestamp, "First Shanghai timestamp")]
     [TestCase(4_000_000, ChiadoSpecProvider.CancunTimestamp, "0x5fbc16bc", 1741254220ul, "First Cancun timestamp")]
     [TestCase(5_000_000, 1741254219u, "0x5fbc16bc", 1741254220ul, "Future Cancun timestamp")]
-    [TestCase(5_000_000, 1741254220u, "0x8ba51786", 1761037900ul, "First Prague timestamp")]
-    [TestCase(5_000_000, 1741254420u, "0x8ba51786", 1761037900ul, "Future Prague timestamp")]
-    [TestCase(5_000_000, 1761037900u, "0x82612523", 0ul, "First Osaka timestamp")]
-    [TestCase(5_000_000, 1761038000u, "0x82612523", 0ul, "Future Osaka timestamp")]
+    [TestCase(5_000_000, 1741254220u, "0x8ba51786", 0ul, "First Prague timestamp")]
+    [TestCase(5_000_000, 1741254420u, "0x8ba51786", 0ul, "Future Prague timestamp")]
+    // [TestCase(5_000_000, 1741254420u, "0x8ba51786", 1761037900ul, "Future Prague timestamp")]
+    // [TestCase(5_000_000, 1761037900u, "0x82612523", 0ul, "First Osaka timestamp")]
+    // [TestCase(5_000_000, 1761038000u, "0x82612523", 0ul, "Future Osaka timestamp")]
     public void Fork_id_and_hash_as_expected_on_chiado(long head, ulong headTimestamp, string forkHashHex, ulong next, string description)
     {
         ChainSpecFileLoader loader = new(new EthereumJsonSerializer(), LimboTraceLogger.Instance);
diff --git a/src/Nethermind/Nethermind.Specs.Test/ChainSpecStyle/ChainSpecBasedSpecProviderTests.cs b/src/Nethermind/Nethermind.Specs.Test/ChainSpecStyle/ChainSpecBasedSpecProviderTests.cs
index 29a82c734184..2f129dc18535 100644
--- a/src/Nethermind/Nethermind.Specs.Test/ChainSpecStyle/ChainSpecBasedSpecProviderTests.cs
+++ b/src/Nethermind/Nethermind.Specs.Test/ChainSpecStyle/ChainSpecBasedSpecProviderTests.cs
@@ -379,9 +379,10 @@ public static IEnumerable<TestCaseData> ChiadoActivations
             yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.CancunTimestamp)) { TestName = "Cancun" };
             yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp - 1)) { TestName = "Before Prague" };
             yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp)) { TestName = "Prague" };
-            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.OsakaTimestamp - 1)) { TestName = "Before Osaka" };
-            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.OsakaTimestamp)) { TestName = "Osaka" };
-            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.OsakaTimestamp + 100000000)) { TestName = "Future" };
+            yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.PragueTimestamp + 100000000)) { TestName = "Future" };
+            // yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.OsakaTimestamp - 1)) { TestName = "Before Osaka" };
+            // yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.OsakaTimestamp)) { TestName = "Osaka" };
+            // yield return new TestCaseData((ForkActivation)(1, ChiadoSpecProvider.OsakaTimestamp + 100000000)) { TestName = "Future" };
         }
     }
 
@@ -407,12 +408,12 @@ public void Chiado_loads_properly(ForkActivation forkActivation)
         IReleaseSpec? postCancunSpec = provider.GetSpec((1, ChiadoSpecProvider.CancunTimestamp));
         IReleaseSpec? prePragueSpec = provider.GetSpec((1, ChiadoSpecProvider.PragueTimestamp - 1));
         IReleaseSpec? postPragueSpec = provider.GetSpec((1, ChiadoSpecProvider.PragueTimestamp));
-        IReleaseSpec? postOsakaSpec = provider.GetSpec((1, ChiadoSpecProvider.OsakaTimestamp));
+        // IReleaseSpec? postOsakaSpec = provider.GetSpec((1, ChiadoSpecProvider.OsakaTimestamp));
 
         VerifyGnosisShanghaiSpecifics(preShanghaiSpec, postShanghaiSpec);
         VerifyGnosisCancunSpecifics(postCancunSpec);
         VerifyGnosisPragueSpecifics(prePragueSpec, postPragueSpec, ChiadoSpecProvider.FeeCollector);
-        VerifyGnosisOsakaSpecifics(postOsakaSpec, ChiadoSpecProvider.FeeCollector);
+        // VerifyGnosisOsakaSpecifics(postOsakaSpec, ChiadoSpecProvider.FeeCollector);
 
         using (Assert.EnterMultipleScope())
         {
diff --git a/src/Nethermind/Nethermind.Specs/ChiadoSpecProvider.cs b/src/Nethermind/Nethermind.Specs/ChiadoSpecProvider.cs
index 9ef94e5708c2..006775826f26 100644
--- a/src/Nethermind/Nethermind.Specs/ChiadoSpecProvider.cs
+++ b/src/Nethermind/Nethermind.Specs/ChiadoSpecProvider.cs
@@ -15,7 +15,7 @@ public class ChiadoSpecProvider : ISpecProvider
     public const ulong ShanghaiTimestamp = 0x646e0e4c;
     public const ulong CancunTimestamp = 0x65ba8e4c;
     public const ulong PragueTimestamp = 0x67c96e4c;
-    public const ulong OsakaTimestamp = 0x68f74e4c;
+    public const ulong OsakaTimestamp = ulong.MaxValue - 1;
 
     public static readonly Address FeeCollector = new("0x1559000000000000000000000000000000000000");