diff --git a/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java b/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java
index 5b57b59bc..ccff560ed 100644
--- a/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java
+++ b/core/src/main/java/google/registry/model/eppcommon/ProtocolDefinition.java
@@ -56,7 +56,7 @@ public class ProtocolDefinition {
     FEE_0_6(FeeCheckCommandExtensionV06.class, FeeCheckResponseExtensionV06.class, true),
     FEE_0_11(FeeCheckCommandExtensionV11.class, FeeCheckResponseExtensionV11.class, true),
     FEE_0_12(FeeCheckCommandExtensionV12.class, FeeCheckResponseExtensionV12.class, true),
-    FEE_1_00(FeeCheckCommandExtensionStdV1.class, FeeCheckResponseExtensionStdV1.class, true),
+    FEE_1_00(FeeCheckCommandExtensionStdV1.class, FeeCheckResponseExtensionStdV1.class, false),
     METADATA_1_0(MetadataExtension.class, null, false);
 
     private final Class<? extends CommandExtension> commandExtensionClass;
diff --git a/core/src/test/java/google/registry/flows/domain/DomainCheckFlowTest.java b/core/src/test/java/google/registry/flows/domain/DomainCheckFlowTest.java
index c88170137..c2b9ac8ae 100644
--- a/core/src/test/java/google/registry/flows/domain/DomainCheckFlowTest.java
+++ b/core/src/test/java/google/registry/flows/domain/DomainCheckFlowTest.java
@@ -1834,6 +1834,7 @@ class DomainCheckFlowTest extends ResourceCheckFlowTestCase<DomainCheckFlow, Dom
         new FeeFileLoader(/* isFeeStdV1= */ false));
   }
 
+  @Disabled("v1.0 buggy")
   @Test
   void testSuccess_eapFeeCheck_std_v1() throws Exception {
     runEapFeeCheckTest(
@@ -1842,6 +1843,7 @@ class DomainCheckFlowTest extends ResourceCheckFlowTestCase<DomainCheckFlow, Dom
         new FeeFileLoader(/* isFeeStdV1= */ true));
   }
 
+  @Disabled("v1.0 buggy")
   @Test
   void testSuccess_eapFeeCheck_date_std_v1() throws Exception {
     runEapFeeCheckTest(
@@ -2004,7 +2006,7 @@ class DomainCheckFlowTest extends ResourceCheckFlowTestCase<DomainCheckFlow, Dom
   @SuppressWarnings("unused")
   private static Stream<Arguments> provideFeeTestParams() {
     return Stream.of(
-        Arguments.of("fee_12", new FeeFileLoader(false)),
-        Arguments.of("fee_std_v1", new FeeFileLoader(true)));
+        // Arguments.of("fee_std_v1", new FeeFileLoader(true)),
+        Arguments.of("fee_12", new FeeFileLoader(false)));
   }
 }
diff --git a/core/src/test/resources/google/registry/flows/greeting.xml b/core/src/test/resources/google/registry/flows/greeting.xml
index f039bfca7..3e4d3a54d 100644
--- a/core/src/test/resources/google/registry/flows/greeting.xml
+++ b/core/src/test/resources/google/registry/flows/greeting.xml
@@ -15,7 +15,6 @@
         <extURI>urn:ietf:params:xml:ns:fee-0.6</extURI>
         <extURI>urn:ietf:params:xml:ns:fee-0.11</extURI>
         <extURI>urn:ietf:params:xml:ns:fee-0.12</extURI>
-        <extURI>urn:ietf:params:xml:ns:epp:fee-1.0</extURI>
       </svcExtension>
     </svcMenu>
     <dcp>
diff --git a/core/src/test/resources/google/registry/flows/session/greeting.xml b/core/src/test/resources/google/registry/flows/session/greeting.xml
index f039bfca7..3e4d3a54d 100644
--- a/core/src/test/resources/google/registry/flows/session/greeting.xml
+++ b/core/src/test/resources/google/registry/flows/session/greeting.xml
@@ -15,7 +15,6 @@
         <extURI>urn:ietf:params:xml:ns:fee-0.6</extURI>
         <extURI>urn:ietf:params:xml:ns:fee-0.11</extURI>
         <extURI>urn:ietf:params:xml:ns:fee-0.12</extURI>
-        <extURI>urn:ietf:params:xml:ns:epp:fee-1.0</extURI>
       </svcExtension>
     </svcMenu>
     <dcp>