diff --git a/Cargo.lock b/Cargo.lock
index 36655aa41..d5d3c61be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -23,6 +23,7 @@ dependencies = [
  "iced",
  "image",
  "inventory",
+ "lzma-sys",
  "open",
  "printpdf",
  "rayon",
diff --git a/Cargo.toml b/Cargo.toml
index 076c79c76..ba1e032aa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,13 @@ edition = "2021"
 build = "build.rs"
 
 [dependencies]
+# vtkio (pulled in transitively via truck-meshalgo) depends on xz2 → lzma-sys,
+# which by default links the system liblzma dynamically. On macOS that bakes a
+# Homebrew dylib path (/opt/homebrew/.../liblzma.5.dylib) into the binary, so
+# the .app crashes on launch on machines without that exact library (#56).
+# Forcing the `static` feature builds liblzma from the bundled source, making
+# the binary self-contained on every platform.
+lzma-sys = { version = "0.1", features = ["static"] }
 iced = { version = "0.14", features = ["debug", "image", "svg", "advanced", "canvas", "smol"] }
 bytemuck = { version = "1.25", features = ["derive"] }
 glam = { version = "0.33", features = ["bytemuck"] }