diff --git a/Cargo.lock b/Cargo.lock
index 56b06ec..8db0b5d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -427,18 +427,18 @@ checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
 [[package]]
 name = "snafu"
-version = "0.8.9"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e84b3f4eacbf3a1ce05eac6763b4d629d60cbc94d632e4092c54ade71f1e1a2"
+checksum = "d1d4bced6a69f90b2056c03dcff2c4737f98d6fb9e0853493996e1d253ca29c6"
 dependencies = [
  "snafu-derive",
 ]
 
 [[package]]
 name = "snafu-derive"
-version = "0.8.9"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1c97747dbf44bb1ca44a561ece23508e99cb592e862f22222dcf42f51d1e451"
+checksum = "54254b8531cafa275c5e096f62d48c81435d1015405a91198ddb11e967301d40"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 9f67232..db6d201 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ categories = ["encoding"]
 
 [dependencies]
 log = "0.4"
-snafu = "0.8"
+snafu = "0.9"
 
 [dev-dependencies]
 chrono = "0.4"
diff --git a/src/error.rs b/src/error.rs
index 3d0a2db..be8fbe4 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -6,6 +6,7 @@ use std::path::PathBuf;
 
 /// The public Error type for this library.
 #[derive(Debug, Snafu)]
+#[snafu(source(from(exact)))]
 pub struct Error(LibError);
 
 /// The public Result type for this library.