diff --git a/dasy/__init__.py b/dasy/__init__.py
index 88fe021..a4db70b 100644
--- a/dasy/__init__.py
+++ b/dasy/__init__.py
@@ -6,4 +6,4 @@
 from .parser import parse
 from .parser.parse import parse_src, parse_node
 
-__version__ = "0.1.26"
+__version__ = "0.1.28"
diff --git a/pyproject.toml b/pyproject.toml
index 2681979..e85f977 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,14 +1,13 @@
 [tool.poetry]
 name = "dasy"
-version = "0.1.27"
-description = ""
+version = "0.1.28"
+description = "an evm lisp"
 authors = ["z80 <z80@ophy.xyz>"]
 
 [tool.poetry.dependencies]
 python = ">=3.10, <3.12"
 argparse = "^1.4.0"
 dasy-hy = "0.24.2"
-titanoboa = "0.1.7"
 hyrule = "^0.2"
 pytest = "^7.1.3"
 vyper = "^0.3.10"
@@ -19,6 +18,7 @@ py-evm = ">=0.6.1a2"
 [tool.poetry.dev-dependencies]
 pytest = ">=7.1"
 black = {version = "^22.8.0", allow-prereleases = true}
+titanoboa = "0.1.8"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]