diff --git a/javelin_sdk/services/gateway_service.py b/javelin_sdk/services/gateway_service.py
index 7059370..5c1143b 100644
--- a/javelin_sdk/services/gateway_service.py
+++ b/javelin_sdk/services/gateway_service.py
@@ -53,7 +53,11 @@ def create_gateway(self, gateway: Gateway) -> str:
         if gateway.name:
             self._validate_gateway_name(gateway.name)
         response = self.client._send_request_sync(
-            Request(method=HttpMethod.POST, gateway=gateway.name, data=gateway.dict())
+            Request(
+                method=HttpMethod.POST,
+                gateway=gateway.name,
+                data=gateway.dict(exclude_none=True),
+            )
         )
         return self._process_gateway_response_ok(response)
 
@@ -61,7 +65,11 @@ async def acreate_gateway(self, gateway: Gateway) -> str:
         if gateway.name:
             self._validate_gateway_name(gateway.name)
         response = await self.client._send_request_async(
-            Request(method=HttpMethod.POST, gateway=gateway.name, data=gateway.dict())
+            Request(
+                method=HttpMethod.POST,
+                gateway=gateway.name,
+                data=gateway.dict(exclude_none=True),
+            )
         )
         return self._process_gateway_response_ok(response)
 
diff --git a/javelin_sdk/services/provider_service.py b/javelin_sdk/services/provider_service.py
index bfc1a13..467c8ee 100644
--- a/javelin_sdk/services/provider_service.py
+++ b/javelin_sdk/services/provider_service.py
@@ -65,7 +65,9 @@ def create_provider(self, provider) -> str:
             self._validate_provider_name(provider.name)
         response = self.client._send_request_sync(
             Request(
-                method=HttpMethod.POST, provider=provider.name, data=provider.dict()
+                method=HttpMethod.POST,
+                provider=provider.name,
+                data=provider.dict(exclude_none=True),
             )
         )
         return self._process_provider_response_ok(response)
@@ -78,7 +80,9 @@ async def acreate_provider(self, provider) -> str:
             self._validate_provider_name(provider.name)
         response = await self.client._send_request_async(
             Request(
-                method=HttpMethod.POST, provider=provider.name, data=provider.dict()
+                method=HttpMethod.POST,
+                provider=provider.name,
+                data=provider.dict(exclude_none=True),
             )
         )
         return self._process_provider_response_ok(response)
diff --git a/javelin_sdk/services/route_service.py b/javelin_sdk/services/route_service.py
index e7f77ae..d9ec620 100644
--- a/javelin_sdk/services/route_service.py
+++ b/javelin_sdk/services/route_service.py
@@ -67,7 +67,11 @@ def create_route(self, route) -> str:
             route = Route.model_validate(route)
         self._validate_route_name(route.name)
         response = self.client._send_request_sync(
-            Request(method=HttpMethod.POST, route=route.name, data=route.dict())
+            Request(
+                method=HttpMethod.POST,
+                route=route.name,
+                data=route.dict(exclude_none=True),
+            )
         )
         return self._process_route_response_ok(response)
 
@@ -76,7 +80,11 @@ async def acreate_route(self, route) -> str:
             route = Route.model_validate(route)
         self._validate_route_name(route.name)
         response = await self.client._send_request_async(
-            Request(method=HttpMethod.POST, route=route.name, data=route.dict())
+            Request(
+                method=HttpMethod.POST,
+                route=route.name,
+                data=route.dict(exclude_none=True),
+            )
         )
         return self._process_route_response_ok(response)
 
diff --git a/javelin_sdk/services/secret_service.py b/javelin_sdk/services/secret_service.py
index 636b9e7..e12dbcd 100644
--- a/javelin_sdk/services/secret_service.py
+++ b/javelin_sdk/services/secret_service.py
@@ -133,7 +133,7 @@ def update_secret(self, secret) -> str:
             Request(
                 method=HttpMethod.PUT,
                 secret=secret.api_key,
-                data=secret.dict(),
+                data=secret.dict(exclude_none=True),
                 provider=secret.provider_name,
             )
         )
@@ -172,7 +172,7 @@ async def aupdate_secret(self, secret) -> str:
             Request(
                 method=HttpMethod.PUT,
                 secret=secret.api_key,
-                data=secret.dict(),
+                data=secret.dict(exclude_none=True),
                 provider=secret.provider_name,
             )
         )
diff --git a/javelin_sdk/services/template_service.py b/javelin_sdk/services/template_service.py
index 54471b7..bce1349 100644
--- a/javelin_sdk/services/template_service.py
+++ b/javelin_sdk/services/template_service.py
@@ -44,7 +44,9 @@ def create_template(self, template) -> str:
             template = Template.model_validate(template)
         response = self.client._send_request_sync(
             Request(
-                method=HttpMethod.POST, template=template.name, data=template.dict()
+                method=HttpMethod.POST,
+                template=template.name,
+                data=template.dict(exclude_none=True),
             )
         )
         if template.name:
@@ -56,7 +58,9 @@ async def acreate_template(self, template) -> str:
             template = Template.model_validate(template)
         response = await self.client._send_request_async(
             Request(
-                method=HttpMethod.POST, template=template.name, data=template.dict()
+                method=HttpMethod.POST,
+                template=template.name,
+                data=template.dict(exclude_none=True),
             )
         )
         if template.name:
@@ -105,7 +109,11 @@ def update_template(self, template) -> str:
         if not isinstance(template, Template):
             template = Template.model_validate(template)
         response = self.client._send_request_sync(
-            Request(method=HttpMethod.PUT, template=template.name, data=template.dict())
+            Request(
+                method=HttpMethod.PUT,
+                template=template.name,
+                data=template.dict(exclude_none=True),
+            )
         )
         if template.name:
             self.reload_data_protection(template.name)
@@ -115,7 +123,11 @@ async def aupdate_template(self, template) -> str:
         if not isinstance(template, Template):
             template = Template.model_validate(template)
         response = await self.client._send_request_async(
-            Request(method=HttpMethod.PUT, template=template.name, data=template.dict())
+            Request(
+                method=HttpMethod.PUT,
+                template=template.name,
+                data=template.dict(exclude_none=True),
+            )
         )
         if template.name:
             await self.areload_data_protection(template.name)