diff --git a/brokk_code/__init__.py b/brokk_code/__init__.py
index f23a6b3..7e0dc0e 100644
--- a/brokk_code/__init__.py
+++ b/brokk_code/__init__.py
@@ -1 +1 @@
-__version__ = "0.13.0"
+__version__ = "0.13.1"
diff --git a/brokk_code/anvil_launcher.py b/brokk_code/anvil_launcher.py
index ee6cf43..eed06fd 100644
--- a/brokk_code/anvil_launcher.py
+++ b/brokk_code/anvil_launcher.py
@@ -28,7 +28,7 @@
 _ANVIL_DOWNLOAD_TIMEOUT_SECONDS = 300.0
 _ANVIL_LOCK_TIMEOUT_SECONDS = 600.0
 _ANVIL_VERSION_PROBE_TIMEOUT_SECONDS = 5.0
-_ANVIL_PINNED_VERSION = "0.17.0"
+_ANVIL_PINNED_VERSION = "0.18.1"
 
 
 class AnvilInstallError(Exception):
diff --git a/tests/test_anvil_launcher.py b/tests/test_anvil_launcher.py
index c8d8bee..0167f99 100644
--- a/tests/test_anvil_launcher.py
+++ b/tests/test_anvil_launcher.py
@@ -99,7 +99,7 @@ def fake_download(version: str) -> Path:
 
     assert resolved == resolved_binary
     assert captured["version"] == anvil_launcher._ANVIL_PINNED_VERSION
-    assert captured["version"] == "0.17.0"
+    assert captured["version"] == "0.18.1"
 
 
 # ---------------------------------------------------------------------------