diff --git a/clients/js-legacy/package.json b/clients/js-legacy/package.json
index 360d1fe..9d391f4 100644
--- a/clients/js-legacy/package.json
+++ b/clients/js-legacy/package.json
@@ -72,7 +72,7 @@
         "ts-node": "^10.9.2",
         "tslib": "^2.8.1",
         "typedoc": "^0.28.19",
-        "typescript": "^5.7.2"
+        "typescript": "^6.0.3"
     },
     "prettier": "@solana/prettier-config-solana"
 }
diff --git a/clients/js-legacy/tsconfig.base.json b/clients/js-legacy/tsconfig.base.json
index 90620c4..2aca5f8 100644
--- a/clients/js-legacy/tsconfig.base.json
+++ b/clients/js-legacy/tsconfig.base.json
@@ -9,6 +9,8 @@
         "noEmitOnError": true,
         "resolveJsonModule": true,
         "strict": true,
-        "stripInternal": true
+        "stripInternal": true,
+        "ignoreDeprecations": "6.0",
+        "types": ["node"]
     }
 }
diff --git a/clients/js-legacy/tsconfig.cjs.json b/clients/js-legacy/tsconfig.cjs.json
index 4dce4e8..ab04817 100644
--- a/clients/js-legacy/tsconfig.cjs.json
+++ b/clients/js-legacy/tsconfig.cjs.json
@@ -5,6 +5,7 @@
         "outDir": "dist/cjs",
         "target": "ES2016",
         "module": "CommonJS",
-        "sourceMap": true
+        "sourceMap": true,
+        "rootDir": "./src"
     }
 }
diff --git a/clients/js-legacy/tsconfig.esm.json b/clients/js-legacy/tsconfig.esm.json
index d7790b5..f3bf58e 100644
--- a/clients/js-legacy/tsconfig.esm.json
+++ b/clients/js-legacy/tsconfig.esm.json
@@ -8,6 +8,7 @@
         "module": "ES2020",
         "sourceMap": true,
         "declaration": true,
-        "declarationMap": true
+        "declarationMap": true,
+        "rootDir": "./src"
     }
 }
diff --git a/clients/js-legacy/tsconfig.json b/clients/js-legacy/tsconfig.json
index 2f9b239..cd3f3f8 100644
--- a/clients/js-legacy/tsconfig.json
+++ b/clients/js-legacy/tsconfig.json
@@ -3,6 +3,7 @@
     "include": ["src", "test"],
     "compilerOptions": {
         "noEmit": true,
-        "skipLibCheck": true
+        "skipLibCheck": true,
+        "types": ["node", "mocha"]
     }
 }