diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77caf47..9175734 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to the "vscode-solidity-language" extension will be documented in this file.
 
+## v0.0.7
+
+- new: add highlighting for `immutable` (safe keywords; green)
+
 ## v0.0.6
 
 - fix: match ucase const - #1
diff --git a/package.json b/package.json
index 236f33e..aad8a0a 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
     "publisher": "tintinweb",
     "icon": "images/icon.png",
     "preview": true,
-    "version": "0.0.6",
+    "version": "0.0.7",
     "engines": {
         "vscode": "^1.60.0"
     },
@@ -79,6 +79,6 @@
         ]
     },
     "devDependencies": {
-        "@vscode/test-web": "^0.0.15"
+        "@vscode/test-web": "^0.0.34"
     }
 }
diff --git a/src/syntaxes/solidity.tmLanguage.json b/src/syntaxes/solidity.tmLanguage.json
index f2dcdeb..85200ba 100644
--- a/src/syntaxes/solidity.tmLanguage.json
+++ b/src/syntaxes/solidity.tmLanguage.json
@@ -574,7 +574,7 @@
         "declaration-visibility": {
             "patterns": [
                 {
-                    "match": "\\b(private|internal|constant|pure|view|nonpayable|indexed)\\b",
+                    "match": "\\b(private|internal|constant|immutable|pure|view|nonpayable|indexed)\\b",
                     "name": "storage.type.modifier.keyword.solidity"
                 },
                 {