diff --git a/esbuild.config.js b/esbuild.config.js
index 846fb684..b7c7e56e 100644
--- a/esbuild.config.js
+++ b/esbuild.config.js
@@ -21,6 +21,12 @@ esbuild
     outfile: 'bundle/gemini.js',
     platform: 'node',
     format: 'esm',
+    alias: {
+      'is-in-ci': path.resolve(
+        __dirname,
+        'packages/cli/src/patches/is-in-ci.ts',
+      ),
+    },
     define: {
       'process.env.CLI_VERSION': JSON.stringify(pkg.version),
     },
diff --git a/packages/cli/src/patches/is-in-ci.ts b/packages/cli/src/patches/is-in-ci.ts
new file mode 100644
index 00000000..a37c8678
--- /dev/null
+++ b/packages/cli/src/patches/is-in-ci.ts
@@ -0,0 +1,17 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This is a replacement for the `is-in-ci` package that always returns false.
+// We are doing this to avoid the issue where `ink` does not render the UI
+// when it detects that it is running in a CI environment.
+// This is safe because `ink` (and thus `is-in-ci`) is only used in the
+// interactive code path of the CLI.
+// See issue #1563 for more details.
+
+const isInCi = false;
+
+// eslint-disable-next-line import/no-default-export
+export default isInCi;