diff --git a/CHANGELOG.md b/CHANGELOG.md
index 131db53e2..2cbe7e262 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 # Unreleased
 
+# 5.3.1 (2023.08.25)
+
+- fixed issue with validateOutput() when schema contains internal reference. [#2363](https://github.com/stoplightio/prism/pull/2363) - thanks @mtjandra for your contribution!
+
 # 5.3.0 (2023.08.17)
 
 - added new cli parameter to control the json schema faker fillProperties setting universally. [#2355](https://github.com/stoplightio/prism/pull/2355)
diff --git a/lerna.json b/lerna.json
index 754f4de63..e21cf53b1 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,6 +2,6 @@
   "packages": ["packages/*"],
   "npmClient": "yarn",
   "useWorkspaces": true,
-  "version": "5.3.0",
+  "version": "5.3.1",
   "independent": false
 }
diff --git a/package.json b/package.json
index abaad06d8..30d47bb53 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "ts-node": "^9.1.1",
     "ts-transform-import-path-rewrite": "^0.3.0",
     "tsconfig-paths": "^4.1.0",
-    "ttypescript": "^1.5.13",
+    "ttypescript": "^1.5.15",
     "type-is": "^1.6.18",
     "typescript": "4.9.3"
   },
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 4a0a1d79d..a54bac836 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stoplight/prism-cli",
-  "version": "5.3.0",
+  "version": "5.3.1",
   "author": "Stoplight <support@stoplight.io>",
   "bin": {
     "prism": "./dist/index.js"
@@ -10,9 +10,9 @@
     "@stoplight/http-spec": "^5.9.2",
     "@stoplight/json": "^3.18.1",
     "@stoplight/json-schema-ref-parser": "9.2.5",
-    "@stoplight/prism-core": "^5.3.0",
-    "@stoplight/prism-http": "^5.3.0",
-    "@stoplight/prism-http-server": "^5.3.0",
+    "@stoplight/prism-core": "^5.3.1",
+    "@stoplight/prism-http": "^5.3.1",
+    "@stoplight/prism-http-server": "^5.3.1",
     "@stoplight/types": "^13.15.0",
     "chalk": "^4.1.2",
     "chokidar": "^3.5.2",
diff --git a/packages/core/package.json b/packages/core/package.json
index cf5e1902a..a1eebecc8 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stoplight/prism-core",
-  "version": "5.3.0",
+  "version": "5.3.1",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "author": "Stoplight <support@stoplight.io>",
diff --git a/packages/http-server/package.json b/packages/http-server/package.json
index 6386cd05c..f7e147140 100644
--- a/packages/http-server/package.json
+++ b/packages/http-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stoplight/prism-http-server",
-  "version": "5.3.0",
+  "version": "5.3.1",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "author": "Stoplight <support@stoplight.io>",
@@ -19,8 +19,8 @@
     "access": "public"
   },
   "dependencies": {
-    "@stoplight/prism-core": "^5.3.0",
-    "@stoplight/prism-http": "^5.3.0",
+    "@stoplight/prism-core": "^5.3.1",
+    "@stoplight/prism-http": "^5.3.1",
     "@stoplight/types": "^13.15.0",
     "fast-xml-parser": "^4.2.0",
     "fp-ts": "^2.11.5",
diff --git a/packages/http/package.json b/packages/http/package.json
index 05eae7e76..425add21c 100644
--- a/packages/http/package.json
+++ b/packages/http/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stoplight/prism-http",
-  "version": "5.3.0",
+  "version": "5.3.1",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "author": "Stoplight <support@stoplight.io>",
@@ -20,7 +20,7 @@
     "@stoplight/json": "^3.18.1",
     "@stoplight/json-schema-merge-allof": "0.7.8",
     "@stoplight/json-schema-sampler": "0.3.0",
-    "@stoplight/prism-core": "^5.3.0",
+    "@stoplight/prism-core": "^5.3.1",
     "@stoplight/types": "^13.15.0",
     "@stoplight/yaml": "^4.2.3",
     "abstract-logging": "^2.0.1",
diff --git a/yarn.lock b/yarn.lock
index 77be8e8f7..3cb8ab96a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8700,10 +8700,10 @@ tsutils@^3.21.0:
   dependencies:
     tslib "^1.8.1"
 
-ttypescript@^1.5.13:
-  version "1.5.13"
-  resolved "https://registry.npmjs.org/ttypescript/-/ttypescript-1.5.13.tgz"
-  integrity sha512-KT/RBfGGlVJFqEI8cVvI3nMsmYcFvPSZh8bU0qX+pAwbi7/ABmYkzn7l/K8skw0xmYjVCoyaV6WLsBQxdadybQ==
+ttypescript@^1.5.15:
+  version "1.5.15"
+  resolved "https://registry.yarnpkg.com/ttypescript/-/ttypescript-1.5.15.tgz#e45550ad69289d06d3bc3fd4a3c87e7c1ef3eba7"
+  integrity sha512-48ykDNHzFnPMnv4hYX1P8Q84TvCZyL1QlFxeuxsuZ48X2+ameBgPenvmCkHJtoOSxpoWTWi8NcgNrRnVDOmfSg==
   dependencies:
     resolve ">=1.9.0"