diff --git a/build.gradle b/build.gradle
index 96ce700b..46073ccd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,7 +30,7 @@ apply {
 }
 
 dependencies {
-  implementation(group: 'uk.gov.hmcts.cp', name: 'api-cp-crime-hearing-case-event-subscription', version: '1.0.0')
+  implementation(group: 'uk.gov.hmcts.cp', name: 'api-cp-crime-hearing-case-event-subscription', version: '1.0.0-cc7de31')
 
   // This is proving to be a real puzzle. This is actually included in the api published pom
   // ( though with scope of "runtime" )
diff --git a/gradle/dependencies/spring-core.gradle b/gradle/dependencies/spring-core.gradle
index c51411b3..dce45c2b 100644
--- a/gradle/dependencies/spring-core.gradle
+++ b/gradle/dependencies/spring-core.gradle
@@ -2,6 +2,7 @@ dependencies {
   implementation "org.springframework.boot:spring-boot-starter-web"
   implementation "org.springframework.boot:spring-boot-starter-aspectj"
   implementation "org.springframework.boot:spring-boot-starter-actuator"
+  implementation "org.springframework.boot:spring-boot-starter-validation"
 
   testImplementation "org.springframework.boot:spring-boot-starter-webmvc-test"
   testImplementation "org.springframework.boot:spring-boot-starter-test"
diff --git a/src/main/java/uk/gov/hmcts/cp/mappers/SubscriptionMapper.java b/src/main/java/uk/gov/hmcts/cp/mappers/SubscriptionMapper.java
index a54e029b..aa3c49b6 100644
--- a/src/main/java/uk/gov/hmcts/cp/mappers/SubscriptionMapper.java
+++ b/src/main/java/uk/gov/hmcts/cp/mappers/SubscriptionMapper.java
@@ -11,7 +11,6 @@
 import uk.gov.hmcts.cp.openapi.model.EventType;
 import uk.gov.hmcts.cp.openapi.model.NotificationEndpoint;
 
-import java.net.URI;
 import java.util.List;
 
 import static java.util.stream.Collectors.toList;
@@ -38,7 +37,6 @@ static String mapFromNotificationEndpoint(final NotificationEndpoint notificatio
     }
 
     static NotificationEndpoint mapToNotificationEndpoint(final String endpointUrl) {
-        final URI uri = URI.create(endpointUrl);
-        return NotificationEndpoint.builder().webhookUrl(uri).build();
+        return NotificationEndpoint.builder().webhookUrl(endpointUrl).build();
     }
 }
diff --git a/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionControllerValidationTest.java b/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionControllerValidationTest.java
index 2841e381..572d80f9 100644
--- a/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionControllerValidationTest.java
+++ b/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionControllerValidationTest.java
@@ -9,7 +9,6 @@
 import uk.gov.hmcts.cp.openapi.model.NotificationEndpoint;
 import uk.gov.hmcts.cp.repositories.SubscriptionRepository;
 
-import java.net.URI;
 import java.util.List;
 
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
@@ -24,7 +23,7 @@ class SubscriptionControllerValidationTest extends IntegrationTestBase {
     SubscriptionRepository subscriptionRepository;
 
     NotificationEndpoint notificationEndpoint = NotificationEndpoint.builder()
-            .webhookUrl(URI.create("https://my-callback-url"))
+            .webhookUrl("https://my-callback-url")
             .build();
     ClientSubscriptionRequest request = ClientSubscriptionRequest.builder()
             .notificationEndpoint(notificationEndpoint)
@@ -42,10 +41,8 @@ void bad_event_type_should_return_400() throws Exception {
                 .andExpect(content().string(""));
     }
 
-    // TODO - decide how to best validate the incoming url and enable this test once done
     @Test
-    @Disabled
-    void bad_url_should_return_400() throws Exception {
+    void webhook_bad_url_should_return_400() throws Exception {
         String body = new ObjectMapper().writeValueAsString(request)
                 .replace("https://my-callback-url", "not-a-url");
         mockMvc.perform(post("/client-subscriptions")
diff --git a/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionGetControllerIntegrationTest.java b/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionGetControllerIntegrationTest.java
index e1d77c3d..3ca9f400 100644
--- a/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionGetControllerIntegrationTest.java
+++ b/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionGetControllerIntegrationTest.java
@@ -9,7 +9,6 @@
 import uk.gov.hmcts.cp.openapi.model.NotificationEndpoint;
 import uk.gov.hmcts.cp.repositories.SubscriptionRepository;
 
-import java.net.URI;
 import java.util.List;
 import java.util.UUID;
 
@@ -27,7 +26,7 @@ class SubscriptionGetControllerIntegrationTest extends IntegrationTestBase {
     SubscriptionRepository subscriptionRepository;
 
     NotificationEndpoint notificationEndpoint = NotificationEndpoint.builder()
-            .webhookUrl(URI.create("https://my-callback-url"))
+            .webhookUrl("https://my-callback-url")
             .build();
     ClientSubscriptionRequest request = ClientSubscriptionRequest.builder()
             .notificationEndpoint(notificationEndpoint)
diff --git a/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionSaveControllerIntegrationTest.java b/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionSaveControllerIntegrationTest.java
index 7d0dc477..083cf28d 100644
--- a/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionSaveControllerIntegrationTest.java
+++ b/src/test/java/uk/gov/hmcts/cp/integration/SubscriptionSaveControllerIntegrationTest.java
@@ -11,11 +11,9 @@
 import uk.gov.hmcts.cp.openapi.model.NotificationEndpoint;
 import uk.gov.hmcts.cp.repositories.SubscriptionRepository;
 
-import java.net.URI;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
@@ -29,7 +27,7 @@ class SubscriptionSaveControllerIntegrationTest extends IntegrationTestBase {
     SubscriptionRepository subscriptionRepository;
 
     NotificationEndpoint notificationEndpoint = NotificationEndpoint.builder()
-            .webhookUrl(URI.create("https://my-callback-url"))
+            .webhookUrl("https://my-callback-url")
             .build();
     ClientSubscriptionRequest request = ClientSubscriptionRequest.builder()
             .notificationEndpoint(notificationEndpoint)
diff --git a/src/test/java/uk/gov/hmcts/cp/mappers/SubscriptionMapperTest.java b/src/test/java/uk/gov/hmcts/cp/mappers/SubscriptionMapperTest.java
index c4ad5985..c5e519f8 100644
--- a/src/test/java/uk/gov/hmcts/cp/mappers/SubscriptionMapperTest.java
+++ b/src/test/java/uk/gov/hmcts/cp/mappers/SubscriptionMapperTest.java
@@ -7,7 +7,6 @@
 import uk.gov.hmcts.cp.openapi.model.ClientSubscriptionRequest;
 import uk.gov.hmcts.cp.openapi.model.NotificationEndpoint;
 
-import java.net.URI;
 import java.time.OffsetDateTime;
 import java.util.List;
 import java.util.UUID;
@@ -22,7 +21,7 @@ class SubscriptionMapperTest {
 
     UUID clientNotificationId = UUID.fromString("d730c6e1-66ba-4ef0-a3dd-0b9928faa76d");
     NotificationEndpoint notificationEndpoint = NotificationEndpoint.builder()
-            .webhookUrl(URI.create("https://example.com"))
+            .webhookUrl("https://example.com")
             .build();
     OffsetDateTime createdAt = OffsetDateTime.now().minusDays(2);
     OffsetDateTime updatedAt = OffsetDateTime.now().minusHours(2);