diff --git a/CHANGES b/CHANGES
index f5aa2ae5c96..928778a91e9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -19,6 +19,12 @@ $ pipx install --suffix=@next 'tmuxp' --pip-args '\--pre' --force
 
 <!-- Maintainers, insert changes / features for the next release here -->
 
+### Breaking changes
+
+- libtmux: 0.33.0 -> 0.34.0 (#919)
+
+  Explicit targets in `cmd()`
+
 ## tmuxp 1.41.1 (2024-03-17)
 
 _Maintenance only, no bug fixes or new features_
diff --git a/poetry.lock b/poetry.lock
index 328694fa13f..8b50dbacc46 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -391,13 +391,13 @@ i18n = ["Babel (>=2.7)"]
 
 [[package]]
 name = "libtmux"
-version = "0.33.0"
+version = "0.34.0"
 description = "Typed library that provides an ORM wrapper for tmux, a terminal multiplexer."
 optional = false
 python-versions = ">=3.8,<4.0"
 files = [
-    {file = "libtmux-0.33.0-py3-none-any.whl", hash = "sha256:aab8245798750ee6102c7df43e218763be42093e6293cdbe3926a80f21d59b76"},
-    {file = "libtmux-0.33.0.tar.gz", hash = "sha256:5267e78a0026571f6b375be64bcf7e1681097adbec465c415007db90927d7a49"},
+    {file = "libtmux-0.34.0-py3-none-any.whl", hash = "sha256:9415ab08dc97dcf1c8f8799ae6b319b31ada5c11262ba5b62bb24485c8595203"},
+    {file = "libtmux-0.34.0.tar.gz", hash = "sha256:ba2b507956b6ff31aae3f0bb7999d521586133a02bc814245ef3b10b93d1458e"},
 ]
 
 [[package]]
@@ -1397,4 +1397,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "49c88a74a498a205f2a3a4c1fd7a129eb17c48e174e4f69cf0f596a670ecb0b5"
+content-hash = "4fb50a6e242f6e7040d806f28e557c3d4505dee2ce582f12590d7b6970eca169"
diff --git a/pyproject.toml b/pyproject.toml
index 16106096f02..6e92c27c9ac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ tmuxp = 'tmuxp:cli.cli'
 
 [tool.poetry.dependencies]
 python = "^3.8"
-libtmux = "~0.33.0"
+libtmux = "~0.34.0"
 colorama = ">=0.3.9"
 PyYAML = "^6.0"
 
diff --git a/src/tmuxp/cli/load.py b/src/tmuxp/cli/load.py
index 0e4b20eb007..f71976ad1fd 100644
--- a/src/tmuxp/cli/load.py
+++ b/src/tmuxp/cli/load.py
@@ -80,7 +80,7 @@ def set_layout_hook(session: Session, hook_name: str) -> None:
         hook name to bind to, e.g. 'client-attached'
     """
     assert session.id is not None
-    cmd: t.List[str] = ["set-hook", "-t", str(session.id), hook_name]
+    cmd: t.List[str] = ["set-hook", hook_name]
     hook_cmd = []
     active_window = session.active_window
     for window in session.windows:
@@ -103,7 +103,7 @@ def set_layout_hook(session: Session, hook_name: str) -> None:
     cmd.append(_hook_cmd)
 
     # create the hook
-    session.cmd(*cmd)
+    session.cmd(*cmd, target=session.id)
 
 
 def load_plugins(session_config: t.Dict[str, t.Any]) -> t.List[t.Any]: