diff --git a/Cargo.lock b/Cargo.lock
index 762bc44..a1a7c59 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
@@ -153,6 +155,12 @@ version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5527cfe0d098f36e3f8839852688e63c8fff1c90b2b405aef730615f9a7bcf7b"
 
+[[package]]
+name = "heck"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
+
 [[package]]
 name = "itoa"
 version = "0.4.3"
@@ -415,9 +423,9 @@ dependencies = [
 
 [[package]]
 name = "snafu"
-version = "0.6.10"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eab12d3c261b2308b0d80c26fffb58d17eba81a4be97890101f416b478c79ca7"
+checksum = "a152ba99b054b22972ee794cf04e5ef572da1229e33b65f3c57abbff0525a454"
 dependencies = [
  "doc-comment",
  "snafu-derive",
@@ -425,10 +433,11 @@ dependencies = [
 
 [[package]]
 name = "snafu-derive"
-version = "0.6.10"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1508efa03c362e23817f96cde18abed596a25219a8b2c66e8db33c03543d315b"
+checksum = "d5e79cdebbabaebb06a9bdbaedc7f159b410461f63611d4d0e3fb0fab8fed850"
 dependencies = [
+ "heck",
  "proc-macro2",
  "quote",
  "syn",
diff --git a/Cargo.toml b/Cargo.toml
index 3cd9a9d..1fd4911 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ rayon = "1"
 serde_json = "1"
 serde = { version = "1", features = ["derive"] }
 clap = "2"
-snafu = "0.6.10"
+snafu = "0.7.3"
 
 [dependencies.nalgebra]
 version = "0.29"