diff --git a/.changeset/healthy-countries-jump.md b/.changeset/healthy-countries-jump.md
new file mode 100644
index 0000000..9f65aa9
--- /dev/null
+++ b/.changeset/healthy-countries-jump.md
@@ -0,0 +1,5 @@
+---
+"@virtual-live-lab/eslint-config": patch
+---
+
+Enable tseslint/strict-boolean-expressions
diff --git a/packages/eslint-config/src/base/typescript.ts b/packages/eslint-config/src/base/typescript.ts
index 385378a..74784e6 100644
--- a/packages/eslint-config/src/base/typescript.ts
+++ b/packages/eslint-config/src/base/typescript.ts
@@ -44,6 +44,13 @@ const tsConfig = tseslint.config({
     "@typescript-eslint/no-unsafe-declaration-merging": "off",
     "@typescript-eslint/prefer-for-of": "off",
     "@typescript-eslint/prefer-function-type": "off",
+    // #97
+    "@typescript-eslint/strict-boolean-expressions": [
+      "error",
+      {
+        allowNumber: false,
+      },
+    ],
   },
 });