diff --git a/schema.json b/schema.json
index 697400b..293addd 100644
--- a/schema.json
+++ b/schema.json
@@ -25,7 +25,8 @@
         }
       },
       "title": "ClassicThemeEntryAreaMargins",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "ClassicThemeHighlightsAreaMargins": {
       "properties": {
@@ -52,7 +53,8 @@
         }
       },
       "title": "ClassicThemeHighlightsAreaMargins",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "ClassicThemeMargins": {
       "properties": {
@@ -114,7 +116,8 @@
         }
       },
       "title": "ClassicThemeMargins",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "ClassicThemeOptions": {
       "properties": {
@@ -186,7 +189,8 @@
         }
       },
       "title": "ClassicThemeOptions",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "ClassicThemePageMargins": {
       "properties": {
@@ -220,7 +224,8 @@
         }
       },
       "title": "ClassicThemePageMargins",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "ClassicThemeSectionTitleMargins": {
       "properties": {
@@ -240,7 +245,8 @@
         }
       },
       "title": "ClassicThemeSectionTitleMargins",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "CurriculumVitae": {
       "properties": {
@@ -474,7 +480,8 @@
         "name"
       ],
       "title": "CurriculumVitae",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "Design": {
       "properties": {
@@ -528,7 +535,8 @@
         }
       },
       "title": "Design",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "EducationEntry": {
       "properties": {
@@ -697,7 +705,8 @@
         "area"
       ],
       "title": "EducationEntry",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "ExperienceEntry": {
       "properties": {
@@ -815,7 +824,8 @@
         "position"
       ],
       "title": "ExperienceEntry",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "NormalEntry": {
       "properties": {
@@ -927,7 +937,8 @@
         "name"
       ],
       "title": "NormalEntry",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "OneLineEntry": {
       "properties": {
@@ -1045,7 +1056,8 @@
         "details"
       ],
       "title": "OneLineEntry",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "PublicationEntry": {
       "properties": {
@@ -1183,7 +1195,8 @@
         "doi"
       ],
       "title": "PublicationEntry",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "Section": {
       "properties": {
@@ -1252,7 +1265,8 @@
         "entries"
       ],
       "title": "Section",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     },
     "SocialNetwork": {
       "properties": {
@@ -1278,7 +1292,8 @@
         "username"
       ],
       "title": "SocialNetwork",
-      "type": "object"
+      "type": "object",
+      "additionalProperties": false
     }
   },
   "properties": {