diff --git a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
index 71cfd3ac3..7d799784b 100644
--- a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
+++ b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
@@ -16,7 +16,7 @@
             "title": "label.metadata-provider-type",
             "description": "tooltip.metadata-provider-type",
             "type": "string",
-            "const": "DynamicHttpMetadataResolver"
+            "default": "DynamicHttpMetadataResolver"
         },
         "enabled": {
             "title": "label.enable-provider-upon-saving",
@@ -445,7 +445,7 @@
                                 {
                                     "properties": {
                                         "requireSignedRoot": {
-                                            "const": true
+                                            "enum": [true]
                                         }
                                     },
                                     "required": [
@@ -455,7 +455,7 @@
                                 {
                                     "properties": {
                                         "requireSignedRoot": {
-                                            "const": false
+                                            "enum": [false]
                                         }
                                     }
                                 }
diff --git a/backend/src/main/resources/file-system-metadata-provider.schema.json b/backend/src/main/resources/file-system-metadata-provider.schema.json
index 38d0d90e3..f2ce9e7c3 100644
--- a/backend/src/main/resources/file-system-metadata-provider.schema.json
+++ b/backend/src/main/resources/file-system-metadata-provider.schema.json
@@ -20,7 +20,7 @@
             "title": "label.metadata-provider-type",
             "description": "tooltip.metadata-provider-type",
             "type": "string",
-            "const": "FilesystemMetadataResolver"
+            "default": "FilesystemMetadataResolver"
         },
         "xmlId": {
             "title": "label.xml-id",
diff --git a/backend/src/main/resources/filebacked-http-metadata-provider.schema.json b/backend/src/main/resources/filebacked-http-metadata-provider.schema.json
index a85d1e400..655ff5e0d 100644
--- a/backend/src/main/resources/filebacked-http-metadata-provider.schema.json
+++ b/backend/src/main/resources/filebacked-http-metadata-provider.schema.json
@@ -39,7 +39,7 @@
             "title": "label.metadata-provider-type",
             "description": "tooltip.metadata-provider-type",
             "type": "string",
-            "const": "FileBackedHttpMetadataResolver"
+            "default": "FileBackedHttpMetadataResolver"
         },
         "enabled": {
             "title": "label.enable-service",
@@ -330,7 +330,7 @@
                                 {
                                     "properties": {
                                         "requireSignedRoot": {
-                                            "const": true
+                                            "enum": [true]
                                         }
                                     },
                                     "required": [
@@ -340,7 +340,7 @@
                                 {
                                     "properties": {
                                         "requireSignedRoot": {
-                                            "const": false
+                                            "enum": [false]
                                         }
                                     }
                                 }
diff --git a/backend/src/main/resources/local-dynamic-metadata-provider.schema.json b/backend/src/main/resources/local-dynamic-metadata-provider.schema.json
index be547ae24..07fcf7674 100644
--- a/backend/src/main/resources/local-dynamic-metadata-provider.schema.json
+++ b/backend/src/main/resources/local-dynamic-metadata-provider.schema.json
@@ -20,7 +20,7 @@
             "title": "label.metadata-provider-type",
             "description": "tooltip.metadata-provider-type",
             "type": "string",
-            "const": "LocalDynamicMetadataResolver"
+            "default": "LocalDynamicMetadataResolver"
         },
         "xmlId": {
             "title": "label.xml-id",
diff --git a/backend/src/main/resources/metadata-sources-ui-schema.json b/backend/src/main/resources/metadata-sources-ui-schema.json
index 1e4714905..4ad8c0e79 100644
--- a/backend/src/main/resources/metadata-sources-ui-schema.json
+++ b/backend/src/main/resources/metadata-sources-ui-schema.json
@@ -50,7 +50,7 @@
                         {
                             "properties": {
                                 "authenticationRequestsSigned": {
-                                    "const": true
+                                    "enum": [true]
                                 },
                                 "x509Certificates": {
                                     "minItems": 1
@@ -60,7 +60,7 @@
                         {
                             "properties": {
                                 "authenticationRequestsSigned": {
-                                    "const": false
+                                    "enum": [false]
                                 },
                                 "x509Certificates": {
                                     "minItems": 0