diff --git a/core/server/api/v2/utils/validators/input/schemas/pages.json b/core/server/api/v2/utils/validators/input/schemas/pages.json
index e9ebb446bb..df8f6977b5 100644
--- a/core/server/api/v2/utils/validators/input/schemas/pages.json
+++ b/core/server/api/v2/utils/validators/input/schemas/pages.json
@@ -141,6 +141,12 @@
                 },
                 "primary_author": {
                     "strip": true
+                },
+                "excerpt": {
+                    "strip": true
+                },
+                "plaintext": {
+                    "strip": true
                 }
             }
         },
diff --git a/core/server/api/v2/utils/validators/input/schemas/posts.json b/core/server/api/v2/utils/validators/input/schemas/posts.json
index b354f81adf..4e598d3c4c 100644
--- a/core/server/api/v2/utils/validators/input/schemas/posts.json
+++ b/core/server/api/v2/utils/validators/input/schemas/posts.json
@@ -141,6 +141,12 @@
                 },
                 "primary_author": {
                     "strip": true
+                },
+                "excerpt": {
+                    "strip": true
+                },
+                "plaintext": {
+                    "strip": true
                 }
             }
         },