diff --git a/pyproject.toml b/pyproject.toml
index 52cadae174..b4aca271e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,7 +41,7 @@ include = [
 dependencies = [
   "libtmux~=0.40.0",
   "colorama>=0.3.9",
-  "PyYAML>=6.0"
+  "PyYAML>=6.0",
 ]
 
 [project.urls]
@@ -88,6 +88,9 @@ dev-dependencies = [
   "types-PyYAML",
 ]
 
+[tool.uv.sources]
+libtmux = { git = "https://github.com/ppentchev/libtmux", branch = "pp-command-env" }
+
 [dependency-groups]
 docs = [
   "aafigure",
diff --git a/uv.lock b/uv.lock
index 7e9e3472a8..be93249738 100644
--- a/uv.lock
+++ b/uv.lock
@@ -386,11 +386,7 @@ wheels = [
 [[package]]
 name = "libtmux"
 version = "0.40.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/b7/15/769e4985afd47d2706f4286dcef69cea77974728b65cec84f945209e8a5e/libtmux-0.40.0.tar.gz", hash = "sha256:047e19bd6c2e58311734207c78741530e7085c769bf62b09b2b0365e9b577155", size = 317342 }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/48/ed/a531293e1fcd2bd48280494be0d7df87e1525841ba74e92283a9adc7482d/libtmux-0.40.0-py3-none-any.whl", hash = "sha256:e1a8e5758f26437476fa12eff54e5afa4a20f5e0ce359cb0e747c8360a024a2e", size = 56186 },
-]
+source = { git = "https://github.com/ppentchev/libtmux?branch=pp-command-env#d93efb98cea2efd1ae4c161a8487752a1a1dae6c" }
 
 [[package]]
 name = "linkify-it-py"
@@ -1250,7 +1246,7 @@ testing = [
 [package.metadata]
 requires-dist = [
     { name = "colorama", specifier = ">=0.3.9" },
-    { name = "libtmux", specifier = "~=0.40.0" },
+    { name = "libtmux", git = "https://github.com/ppentchev/libtmux?branch=pp-command-env" },
     { name = "pyyaml", specifier = ">=6.0" },
 ]