diff --git a/graphile-build/graphile-build-pg/src/index.ts b/graphile-build/graphile-build-pg/src/index.ts
index 3de75aa09..54d7d68a6 100644
--- a/graphile-build/graphile-build-pg/src/index.ts
+++ b/graphile-build/graphile-build-pg/src/index.ts
@@ -108,9 +108,6 @@ declare global {
     interface PgResourceExtensions {
       description?: string;
       tags: Partial<GraphileBuild.PgResourceTags>;
-      isInsertable?: boolean;
-      isUpdatable?: boolean;
-      isDeletable?: boolean;
       singleOutputParameterName?: string;
       /** For v4 compatibility, what's the name of the actual table. */
       pg?: {