diff --git a/package.json b/package.json
index 40f0695921..e85bb525c6 100644
--- a/package.json
+++ b/package.json
@@ -112,7 +112,7 @@
     ],
     "globals": {
       "ts-jest": {
-        "tsconfig": "tsconfig.jest.json"
+        "tsconfig": "tests/tsconfig.json"
       }
     }
   },
diff --git a/tests/tsconfig.json b/tests/tsconfig.json
new file mode 100644
index 0000000000..c8024a780b
--- /dev/null
+++ b/tests/tsconfig.json
@@ -0,0 +1,10 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../build/js",
+  },
+  "include": [
+    "../src",
+    "."
+  ]
+}
diff --git a/tsconfig.jest.json b/tsconfig.jest.json
deleted file mode 100644
index fd28876f07..0000000000
--- a/tsconfig.jest.json
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  "compilerOptions": {
-    "module": "commonjs",
-    "preserveConstEnums": true,
-    "noImplicitThis": true,
-    "moduleResolution": "node",
-    "removeComments": false,
-    "target": "es2019",
-    "outDir": "dist",
-    "alwaysStrict": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": false,
-    "noImplicitReturns": true,
-    "noFallthroughCasesInSwitch": true,
-    "strictPropertyInitialization": true,
-    "strictNullChecks": true,
-    "esModuleInterop": true,
-    "allowJs": true,
-    "sourceMap": true
-  },
-  "include": ["src", "tests"],
-  "typedocOptions": {
-    "entryPoints": ["src/index.ts"],
-    "out": "doc/tsdoc",
-    "name": "o-spreadsheet API",
-    "readme": "none",
-    "excludePrivate": true,
-    "hideGenerator": true,
-    "disableSources": true,
-    "excludeExternals": true
-  }
-}