diff --git a/pyproject.toml b/pyproject.toml
index 0ef56c9..7720e94 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "paos"
-version = "1.2.6-dev5"
+version = "1.2.6-dev4"
 description = "PAOS, the Physical Optics Simulator, is a fast, modern, and reliable Python package for Physical Optics studies. It implements Physical Optics Propagation in Fresnel approximation and paraxial ray tracing to analyze complex waveform propagation through both generic and off-axes optical systems."
 license = "BSD-3-Clause"
 authors = [
@@ -61,6 +61,7 @@ loguru = "^0.7.2"
 shiny = "*"
 shinywidgets = "*"
 faicons = "*"
+marimo = "^0.10.7"
 
 [tool.poetry.group.docs.dependencies]
 sphinx = "*"