diff --git a/README.md b/README.md
index 2abdb334..01633b8f 100644
--- a/README.md
+++ b/README.md
@@ -23,13 +23,13 @@ You may keep the script in the root directory of your project or install it glob
 To install it globally:
 
 ```bash
-sudo curl -Lf https://github.com/hyperledger-labs/fablo/releases/download/1.1.0/fablo.sh -o /usr/local/bin/fablo && sudo chmod +x /usr/local/bin/fablo
+sudo curl -Lf https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/fablo.sh -o /usr/local/bin/fablo && sudo chmod +x /usr/local/bin/fablo
 ```
 
 To get a copy of Fablo for a single project, execute in the project root:
 
 ```bash
-curl -Lf https://github.com/hyperledger-labs/fablo/releases/download/1.1.0/fablo.sh -o ./fablo && chmod +x ./fablo
+curl -Lf https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/fablo.sh -o ./fablo && chmod +x ./fablo
 ```
 
 ## Getting started
@@ -325,7 +325,7 @@ The basic structure of Fablo config file is as follows:
 
 ```json
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.1.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": { ... },
   "orgs": [ ... ],
   "channels": [ ... ],
@@ -488,7 +488,7 @@ Genrated Hooks are saved in `fablo-target/hooks`.
 
 ```yaml
 ---
-"$schema": https://github.com/hyperledger-labs/fablo/releases/download/1.1.0/schema.json
+"$schema": https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json
 global:
   fabricVersion: 2.4.2
   tls: false
diff --git a/bump-version.sh b/bump-version.sh
new file mode 100755
index 00000000..c2c83c49
--- /dev/null
+++ b/bump-version.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -eu
+
+old_version=$(< package.json jq -r '.version')
+ver_arg="${1:-unstable}"
+
+if [ "$ver_arg" = "patch" ] || [ "$ver_arg" = "minor" ] || [ "$ver_arg" = "major" ]; then
+  new_version=$(semver "$old_version" -i "$ver_arg")
+elif [ "$ver_arg" = "unstable" ]; then
+  new_version=$(semver "$old_version" -i prerelease --preid unstable)
+else
+  echo "Invalid version parameter: $ver_arg"
+  echo "Usage: $0 [patch|minor|major|unstable]"
+  exit 1
+fi
+
+echo "Updating version from $old_version to $new_version"
+echo -n " - package.json...    "
+npm version "$new_version" --no-git-tag-version > /dev/null
+echo "done"
+
+echo -n " - FABLO_VERSION...   "
+perl -i -pe "s/FABLO_VERSION=\"[^\"]*\"/FABLO_VERSION=\"${new_version}\"/g" fablo.sh
+perl -i -pe "s/FABLO_VERSION=\"[^\"]*\"/FABLO_VERSION=\"${new_version}\"/g" e2e/__snapshots__/*
+echo "done"
+
+echo -n " - JSON schema URL... "
+schema_update_pattern="s/download\/[0-9-.a-zA-Z]*\/schema.json/download\/${new_version}\/schema.json/g"
+perl -i -pe "$schema_update_pattern" README.md
+perl -i -pe "$schema_update_pattern" docs/schema.json
+perl -i -pe "$schema_update_pattern" samples/*.json
+perl -i -pe "$schema_update_pattern" samples/*.yaml
+perl -i -pe "$schema_update_pattern" e2e/__snapshots__/*
+echo "done"
+
+echo -n " - download URL...    "
+download_update_pattern="s/download\/[0-9-.a-zA-Z]*\/fablo.sh/download\/${new_version}\/fablo.sh/g"
+perl -i -pe "$download_update_pattern" README.md
+echo "done"
\ No newline at end of file
diff --git a/docs/schema.json b/docs/schema.json
index 08d5a22c..a493429c 100644
--- a/docs/schema.json
+++ b/docs/schema.json
@@ -12,7 +12,7 @@
   ],
   "properties": {
     "$schema": {
-      "const": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json"
+      "const": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json"
     },
     "global": {
       "$id": "#/properties/global",
diff --git a/e2e/__snapshots__/fabloCommands.test.ts.snap b/e2e/__snapshots__/fabloCommands.test.ts.snap
index 4cc334c5..cdb19045 100644
--- a/e2e/__snapshots__/fabloCommands.test.ts.snap
+++ b/e2e/__snapshots__/fabloCommands.test.ts.snap
@@ -2907,7 +2907,7 @@ Validation warnings count: 0
 
 exports[`init should init simple fablo config 1`] = `
 "{
-  \\"$schema\\": \\"https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json\\",
+  \\"$schema\\": \\"https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json\\",
   \\"global\\": {
     \\"fabricVersion\\": \\"2.4.7\\",
     \\"tls\\": false,
@@ -2961,7 +2961,7 @@ exports[`init should init simple fablo config 1`] = `
 
 exports[`init should init simple fablo config with node chaincode 1`] = `
 "{
-  \\"$schema\\": \\"https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json\\",
+  \\"$schema\\": \\"https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json\\",
   \\"global\\": {
     \\"fabricVersion\\": \\"2.4.7\\",
     \\"tls\\": false,
@@ -3023,7 +3023,7 @@ exports[`init should init simple fablo config with node chaincode 1`] = `
 
 exports[`init should init simple fablo config with node chaincode and rest api 1`] = `
 "{
-  \\"$schema\\": \\"https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json\\",
+  \\"$schema\\": \\"https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json\\",
   \\"global\\": {
     \\"fabricVersion\\": \\"2.4.7\\",
     \\"tls\\": false,
diff --git a/e2e/__snapshots__/schema.test.ts.snap b/e2e/__snapshots__/schema.test.ts.snap
index 03b48ff3..8b96b88d 100644
--- a/e2e/__snapshots__/schema.test.ts.snap
+++ b/e2e/__snapshots__/schema.test.ts.snap
@@ -7,7 +7,7 @@ Object {
   "default": Object {},
   "properties": Object {
     "$schema": Object {
-      "const": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+      "const": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
     },
     "chaincodes": Object {
       "$id": "#/properties/chaincodes",
diff --git a/fablo.sh b/fablo.sh
index 6b361b89..35694e90 100755
--- a/fablo.sh
+++ b/fablo.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-FABLO_VERSION="1.2.0"
+FABLO_VERSION="1.2.1-unstable.0"
 FABLO_IMAGE_NAME="softwaremill/fablo"
 FABLO_IMAGE="$FABLO_IMAGE_NAME:$FABLO_VERSION"
 
diff --git a/package-lock.json b/package-lock.json
index e912599b..09320692 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "generator-fablo",
-  "version": "1.2.0",
+  "version": "1.2.1-unstable.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "generator-fablo",
-      "version": "1.2.0",
+      "version": "1.2.1-unstable.0",
       "license": "Apache-2.0",
       "dependencies": {
         "chalk": "^4.1.0",
diff --git a/package.json b/package.json
index fe972fab..d828b98c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "generator-fablo",
-  "version": "1.2.0",
+  "version": "1.2.1-unstable.0",
   "description": "Fablo is a simple tool to generate the Hyperledger Fabric blockchain network and run it on Docker. It supports RAFT and solo consensus protocols, multiple organizations and channels, chaincode installation and upgrade.",
   "author": "Piotr Hejwowski <piotr.hejwowski@gmail.com>, Jakub Dzikowski <jakub@dzikowski.online>",
   "repository": {
diff --git a/samples/fablo-config-hlf1.3-2orgs-1chaincode-private-data.json b/samples/fablo-config-hlf1.3-2orgs-1chaincode-private-data.json
index 547eea26..6e106b6d 100644
--- a/samples/fablo-config-hlf1.3-2orgs-1chaincode-private-data.json
+++ b/samples/fablo-config-hlf1.3-2orgs-1chaincode-private-data.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "1.3.0",
     "tls": false
diff --git a/samples/fablo-config-hlf1.4-1org-1chaincode-raft.json b/samples/fablo-config-hlf1.4-1org-1chaincode-raft.json
index 3b357cd6..bd47697a 100644
--- a/samples/fablo-config-hlf1.4-1org-1chaincode-raft.json
+++ b/samples/fablo-config-hlf1.4-1org-1chaincode-raft.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "1.4.6",
     "tls": true,
diff --git a/samples/fablo-config-hlf1.4-2orgs-1chaincode.json b/samples/fablo-config-hlf1.4-2orgs-1chaincode.json
index 98cd99f2..cfc4d1d2 100644
--- a/samples/fablo-config-hlf1.4-2orgs-1chaincode.json
+++ b/samples/fablo-config-hlf1.4-2orgs-1chaincode.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "1.4.6",
     "tls": false
diff --git a/samples/fablo-config-hlf1.4-2orgs-2chaincodes-private-data.yaml b/samples/fablo-config-hlf1.4-2orgs-2chaincodes-private-data.yaml
index 7c3ecd9c..844191ba 100644
--- a/samples/fablo-config-hlf1.4-2orgs-2chaincodes-private-data.yaml
+++ b/samples/fablo-config-hlf1.4-2orgs-2chaincodes-private-data.yaml
@@ -1,5 +1,5 @@
 ---
-"$schema": https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json
+"$schema": https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json
 global:
   fabricVersion: 1.4.11
   tls: false
diff --git a/samples/fablo-config-hlf1.4-2orgs-2chaincodes-raft.json b/samples/fablo-config-hlf1.4-2orgs-2chaincodes-raft.json
index ed8ab19e..e20d735a 100644
--- a/samples/fablo-config-hlf1.4-2orgs-2chaincodes-raft.json
+++ b/samples/fablo-config-hlf1.4-2orgs-2chaincodes-raft.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "1.4.6",
     "tls": true
diff --git a/samples/fablo-config-hlf2-1org-1chaincode-k8s.json b/samples/fablo-config-hlf2-1org-1chaincode-k8s.json
index a93be7b3..04798481 100644
--- a/samples/fablo-config-hlf2-1org-1chaincode-k8s.json
+++ b/samples/fablo-config-hlf2-1org-1chaincode-k8s.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "2.4.7",
     "tls": false,
diff --git a/samples/fablo-config-hlf2-1org-1chaincode-raft-explorer.json b/samples/fablo-config-hlf2-1org-1chaincode-raft-explorer.json
index 7c3611c1..8c0886b4 100644
--- a/samples/fablo-config-hlf2-1org-1chaincode-raft-explorer.json
+++ b/samples/fablo-config-hlf2-1org-1chaincode-raft-explorer.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "2.3.3",
     "tls": true,
diff --git a/samples/fablo-config-hlf2-1org-1chaincode.json b/samples/fablo-config-hlf2-1org-1chaincode.json
index ae60e60f..2aecb739 100644
--- a/samples/fablo-config-hlf2-1org-1chaincode.json
+++ b/samples/fablo-config-hlf2-1org-1chaincode.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "2.4.7",
     "tls": false
diff --git a/samples/fablo-config-hlf2-2orgs-2chaincodes-raft.yaml b/samples/fablo-config-hlf2-2orgs-2chaincodes-raft.yaml
index 24797cef..c150b9d6 100644
--- a/samples/fablo-config-hlf2-2orgs-2chaincodes-raft.yaml
+++ b/samples/fablo-config-hlf2-2orgs-2chaincodes-raft.yaml
@@ -1,5 +1,5 @@
 ---
-"$schema": https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json
+"$schema": https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json
 global:
   fabricVersion: 2.4.3
   tls: true
diff --git a/samples/fablo-config-hlf2-3orgs-1chaincode-raft-explorer.json b/samples/fablo-config-hlf2-3orgs-1chaincode-raft-explorer.json
index df3a6069..42b60d1c 100644
--- a/samples/fablo-config-hlf2-3orgs-1chaincode-raft-explorer.json
+++ b/samples/fablo-config-hlf2-3orgs-1chaincode-raft-explorer.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.0/schema.json",
+  "$schema": "https://github.com/hyperledger-labs/fablo/releases/download/1.2.1-unstable.0/schema.json",
   "global": {
     "fabricVersion": "2.3.2",
     "tls": true,