diff --git a/.github/workflows/network-synchronization.yaml b/.github/workflows/network-synchronization.yaml
index 77807d3df..e508c8b3a 100644
--- a/.github/workflows/network-synchronization.yaml
+++ b/.github/workflows/network-synchronization.yaml
@@ -16,8 +16,8 @@ jobs:
     strategy:
       matrix:
         network: [ preview ]
-        ogmios_version: [ v6.6.2 ]
-        cardano_node_version: [ 9.1.1 ]
+        ogmios_version: [ v6.9.0 ]
+        cardano_node_version: [ 10.1.2 ]
 
     runs-on: ubuntu-latest
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbcd66d91..4715fb953 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ pre: "<b>6. </b>"
 math: true
 ---
 
-### [6.9.0] - 2024-11-08
+### [6.9.0] - UNRELEASED
 
 #### Added
 
diff --git a/clients/TypeScript/package.json b/clients/TypeScript/package.json
index 8fe29246c..8d9a00506 100644
--- a/clients/TypeScript/package.json
+++ b/clients/TypeScript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cardano-ogmios",
-  "version": "6.9.0",
+  "version": "6.8.0",
   "private": true,
   "description": "TypeScript monorepo with client libraries for Cardano Ogmios",
   "engines": {
diff --git a/clients/TypeScript/packages/client/package.json b/clients/TypeScript/packages/client/package.json
index c6b98f9eb..4b889d5d2 100644
--- a/clients/TypeScript/packages/client/package.json
+++ b/clients/TypeScript/packages/client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cardano-ogmios/client",
-  "version": "6.9.0",
+  "version": "6.8.0",
   "description": "TypeScript client library for Cardano Ogmios",
   "engines": {
     "node": ">=14"
@@ -47,7 +47,7 @@
     "typescript": "^4.2.3"
   },
   "dependencies": {
-    "@cardano-ogmios/schema": "6.9.0",
+    "@cardano-ogmios/schema": "6.8.0",
     "@cardanosolutions/json-bigint": "^1.0.1",
     "@types/json-bigint": "^1.0.1",
     "bech32": "^2.0.0",
diff --git a/clients/TypeScript/packages/repl/package.json b/clients/TypeScript/packages/repl/package.json
index 81fb93275..c9897e76e 100644
--- a/clients/TypeScript/packages/repl/package.json
+++ b/clients/TypeScript/packages/repl/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cardano-ogmios/repl",
-  "version": "6.9.0",
+  "version": "6.8.0",
   "description": "REPL for Cardano Ogmios",
   "engines": {
     "node": ">=14"
@@ -39,7 +39,7 @@
     "typescript": "^4.2.3"
   },
   "dependencies": {
-    "@cardano-ogmios/client": "6.9.0",
+    "@cardano-ogmios/client": "6.8.0",
     "yargs-parser": "^20.2.7"
   },
   "files": [
diff --git a/clients/TypeScript/packages/schema/package.json b/clients/TypeScript/packages/schema/package.json
index a01d8170c..fd8c3edf1 100644
--- a/clients/TypeScript/packages/schema/package.json
+++ b/clients/TypeScript/packages/schema/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cardano-ogmios/schema",
-  "version": "6.9.0",
+  "version": "6.8.0",
   "description": "Generated TypeScript from the Cardano Ogmios schema",
   "engines": {
     "node": ">=14"