diff --git a/src/api/json/catalog.json b/src/api/json/catalog.json
index fa0d742c788..6f6f9f5756e 100644
--- a/src/api/json/catalog.json
+++ b/src/api/json/catalog.json
@@ -4997,6 +4997,12 @@
       "fileMatch": ["railway.toml", "railway.json"],
       "url": "https://railway.com/railway.schema.json"
     },
+    {
+      "name": "Railpack",
+      "description": "Configuration file for Railpack deployment tool",
+      "fileMatch": ["railpack.json"],
+      "url": "https://schema.railpack.com"
+    },
     {
       "name": "Rattler-build",
       "description": "Rattler-build recipe",
diff --git a/src/negative_test/specmatic/wrong-stub-strict-mode-type.json b/src/negative_test/specmatic/wrong-stub-strict-mode-type.json
new file mode 100644
index 00000000000..f9e63b75ed5
--- /dev/null
+++ b/src/negative_test/specmatic/wrong-stub-strict-mode-type.json
@@ -0,0 +1,7 @@
+{
+  "contracts": [],
+  "stub": {
+    "strictMode": "enabled"
+  },
+  "version": 2
+}
diff --git a/src/negative_test/specmatic/wrong-test-strict-mode-type.json b/src/negative_test/specmatic/wrong-test-strict-mode-type.json
new file mode 100644
index 00000000000..6dba7a884d2
--- /dev/null
+++ b/src/negative_test/specmatic/wrong-test-strict-mode-type.json
@@ -0,0 +1,7 @@
+{
+  "contracts": [],
+  "test": {
+    "strictMode": "enabled"
+  },
+  "version": 2
+}
diff --git a/src/schemas/json/specmatic.json b/src/schemas/json/specmatic.json
index 774ee0f9dfa..26ad799096c 100644
--- a/src/schemas/json/specmatic.json
+++ b/src/schemas/json/specmatic.json
@@ -458,6 +458,10 @@
         "timeoutInMilliseconds": {
           "type": ["integer", "null"],
           "description": "Test timeout in milliseconds"
+        },
+        "strictMode": {
+          "type": ["boolean", "null"],
+          "description": "Whether to enable strict mode for contract testing"
         }
       }
     },
@@ -501,6 +505,10 @@
         "hotReload": {
           "type": ["string", "null"],
           "description": "Hot reload configuration"
+        },
+        "strictMode": {
+          "type": ["boolean", "null"],
+          "description": "Whether to enable strict mode for stubbing"
         }
       }
     },
diff --git a/src/test/specmatic/specmatic.json b/src/test/specmatic/specmatic.json
index 592a0de3172..b2d9b3948c1 100644
--- a/src/test/specmatic/specmatic.json
+++ b/src/test/specmatic/specmatic.json
@@ -140,13 +140,15 @@
     "generative": true,
     "hotReload": "enabled",
     "includeMandatoryAndRequestedKeysInResponse": true,
-    "startTimeoutInMilliseconds": 10000
+    "startTimeoutInMilliseconds": 10000,
+    "strictMode": true
   },
   "test": {
     "allowExtensibleSchema": false,
     "resiliencyTests": {
       "enable": "all"
     },
+    "strictMode": false,
     "timeoutInMilliseconds": 30000,
     "validateResponseValues": true
   },