diff --git a/server/portfolio/inputs.py b/server/portfolio/inputs.py
index ebb4e354..e41340e6 100644
--- a/server/portfolio/inputs.py
+++ b/server/portfolio/inputs.py
@@ -28,5 +28,5 @@ class AddProjectEntryArgument(ProjectEntryInput):
 
 
 class UpdateProjectEntryArgument(ProjectEntryInput):
-    slug = graphene.String(required=True)
+    id = graphene.ID(required=True)
 
diff --git a/server/schema.graphql b/server/schema.graphql
index 3b8b0d41..b3f1e957 100644
--- a/server/schema.graphql
+++ b/server/schema.graphql
@@ -71,7 +71,7 @@ input AddProjectArgument {
 input AddProjectEntryArgument {
   description: String
   documentUrl: String
-  project: ID!
+  project: String!
 }
 
 input AddProjectEntryInput {
@@ -408,7 +408,7 @@ type DeleteProjectEntryPayload {
 }
 
 input DeleteProjectInput {
-  id: ID!
+  slug: String!
   clientMutationId: String
 }
 
@@ -1302,7 +1302,7 @@ input UpdateProjectArgument {
   description: String
   objectives: String
   appearance: String
-  id: ID!
+  slug: String!
   final: Boolean
 }
 
@@ -1335,7 +1335,7 @@ type UpdateProjectPayload {
 }
 
 input UpdateProjectSharedStateInput {
-  id: ID
+  slug: String
   shared: Boolean
   clientMutationId: String
 }