diff --git a/package.json b/package.json
index 977da84..ca63c30 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "ralph-vscode",
   "displayName": "ralph vscode",
   "description": "ralph vscode",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "engines": {
     "vscode": "^1.69.0",
     "node": ">=v18.0.0"
@@ -68,12 +68,12 @@
         "ralph.download.config.url": {
           "type": "string",
           "description": "download link",
-          "default": "https://github.com/alephium/alephium/releases/download/v1.6.3/alephium-ralphc-1.6.3.jar"
+          "default": "https://github.com/alephium/alephium/releases/download/v1.6.4/alephium-ralphc-1.6.4.jar"
         },
         "ralph.download.config.target": {
           "type": "string",
           "description": "compiler jar",
-          "default": "alephium-ralphc-1.6.3.jar"
+          "default": "alephium-ralphc-1.6.4.jar"
         },
         "ralph.compile.command": {
           "type": "string",
diff --git a/tests/artifacts/add/add.ral.json b/tests/artifacts/add/add.ral.json
index 43b2604..c8fbf91 100644
--- a/tests/artifacts/add/add.ral.json
+++ b/tests/artifacts/add/add.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "Add",
   "bytecode": "02020d40300100020402041600160100010200000202021205160016015fa00116002a16012aa101a001160016010e0da000010002",
   "codeHash": "a20cffb6f8f9416decd7aec0375b12e04475e8cf19ba80775f8f2d7633e2556d",
diff --git a/tests/artifacts/greeter/greeter.ral.json b/tests/artifacts/greeter/greeter.ral.json
index a2eaaa0..cce6f18 100644
--- a/tests/artifacts/greeter/greeter.ral.json
+++ b/tests/artifacts/greeter/greeter.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "Greeter",
   "bytecode": "01010c010000000105030c7ba00002",
   "codeHash": "23a48462286d2c2ffc6d3a19192060dd42c178e7d331819e75e059c5be3c042f",
diff --git a/tests/artifacts/greeter_main.ral.json b/tests/artifacts/greeter_main.ral.json
index 65e4462..dd0c27f 100644
--- a/tests/artifacts/greeter_main.ral.json
+++ b/tests/artifacts/greeter_main.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "GreeterMain",
   "bytecodeTemplate": "01010300020014{0}17000c0d160001000d2f0c7b{0}17010c0d160101000d2f0c7b",
   "fieldsSig": {
diff --git a/tests/artifacts/main.ral.json b/tests/artifacts/main.ral.json
index ad484fb..29d61a3 100644
--- a/tests/artifacts/main.ral.json
+++ b/tests/artifacts/main.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "Main",
   "bytecodeTemplate": "0101030001000a{0}17000e0d0e0e160001001818",
   "fieldsSig": {
diff --git a/tests/artifacts/sub/sub.ral.json b/tests/artifacts/sub/sub.ral.json
index 36ec6b4..493f1bb 100644
--- a/tests/artifacts/sub/sub.ral.json
+++ b/tests/artifacts/sub/sub.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "Sub",
   "bytecode": "01011901000202010c05160016015fa00016002a16012ba100a00002",
   "codeHash": "513645f5c95a28d55a51070f3d5c51edbda05a98f46b23cad59952e2ee4846a1",
diff --git a/tests/artifacts/test/metadata.ral.json b/tests/artifacts/test/metadata.ral.json
index 37290b0..6dc40c2 100644
--- a/tests/artifacts/test/metadata.ral.json
+++ b/tests/artifacts/test/metadata.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "MetaData",
   "bytecode": "00010700000000000102",
   "codeHash": "6d760b29e9479d910e22b9bc953d2f27a4b9205fbe5ab6a4c83b1261d593b6ae",
diff --git a/tests/artifacts/test/warnings.ral.json b/tests/artifacts/test/warnings.ral.json
index 047737a..d78d191 100644
--- a/tests/artifacts/test/warnings.ral.json
+++ b/tests/artifacts/test/warnings.ral.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.6.3",
+  "version": "v1.6.4",
   "name": "Warnings",
   "bytecode": "02010701000202000102",
   "codeHash": "9a0c90d67d729a478062d6794cf7b75c27483c50f6fe2ad13c5ed8873ad1fde2",