diff --git a/bin/omarchy-refresh-tmux b/bin/omarchy-refresh-tmux
index 64c7f9f2..560c7fd5 100755
--- a/bin/omarchy-refresh-tmux
+++ b/bin/omarchy-refresh-tmux
@@ -3,7 +3,4 @@
 # Overwrite the user tmux config with the Omarchy default and reload tmux.
 
 omarchy-refresh-config tmux/tmux.conf
-
-if pgrep -x tmux; then
-  tmux source-file ~/.config/tmux/tmux.conf
-fi
+omarchy-restart-tmux
diff --git a/bin/omarchy-restart-tmux b/bin/omarchy-restart-tmux
new file mode 100755
index 00000000..b1ce7603
--- /dev/null
+++ b/bin/omarchy-restart-tmux
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# Restart tmux if running with the latest configuration
+
+if pgrep -x tmux; then
+  tmux source-file ~/.config/tmux/tmux.conf
+fi
diff --git a/migrations/1772294096.sh b/migrations/1772294096.sh
new file mode 100644
index 00000000..b00383dc
--- /dev/null
+++ b/migrations/1772294096.sh
@@ -0,0 +1,21 @@
+echo "Add Alt+Arrow keybindings for tmux window and session navigation"
+
+TMUX_CONF=~/.config/tmux/tmux.conf
+
+if [[ -f $TMUX_CONF ]]; then
+  # Add M-Left/M-Right after M-9 if not present
+  if ! grep -q "bind -n M-Left select-window" "$TMUX_CONF"; then
+    sed -i '/bind -n M-9 select-window -t 9/a\
+bind -n M-Left select-window -t -1\
+bind -n M-Right select-window -t +1' "$TMUX_CONF"
+  fi
+
+  # Add M-Up/M-Down after "bind N switch-client -n" if not present
+  if ! grep -q "bind -n M-Up switch-client" "$TMUX_CONF"; then
+    sed -i '/^bind N switch-client -n$/a\
+bind -n M-Up switch-client -p\
+bind -n M-Down switch-client -n' "$TMUX_CONF"
+  fi
+
+  omarchy-restart-tmux
+fi