diff --git a/Cargo.lock b/Cargo.lock
index 165fa413..5e94f994 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,21 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "addr2line"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
-dependencies = [
- "gimli",
-]
-
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
 [[package]]
 name = "aho-corasick"
 version = "1.1.2"
@@ -74,21 +59,6 @@ dependencies = [
  "windows-sys",
 ]
 
-[[package]]
-name = "backtrace"
-version = "0.3.69"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
-dependencies = [
- "addr2line",
- "cc",
- "cfg-if",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
-
 [[package]]
 name = "base64"
 version = "0.21.4"
@@ -113,15 +83,6 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
-[[package]]
-name = "cc"
-version = "1.0.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -159,7 +120,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.38",
+ "syn",
 ]
 
 [[package]]
@@ -193,11 +154,11 @@ dependencies = [
  "base64",
  "bitflags 2.4.0",
  "byteorder",
- "failure",
  "lazy_static",
  "ntapi",
  "serde",
  "serde_derive",
+ "thiserror",
  "toml",
  "uuid",
  "version-sync",
@@ -226,28 +187,6 @@ dependencies = [
  "windows-sys",
 ]
 
-[[package]]
-name = "failure"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
-dependencies = [
- "backtrace",
- "failure_derive",
-]
-
-[[package]]
-name = "failure_derive"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 1.0.109",
- "synstructure",
-]
-
 [[package]]
 name = "fastrand"
 version = "2.0.1"
@@ -263,12 +202,6 @@ dependencies = [
  "percent-encoding",
 ]
 
-[[package]]
-name = "gimli"
-version = "0.28.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0"
-
 [[package]]
 name = "hashbrown"
 version = "0.14.1"
@@ -334,15 +267,6 @@ version = "2.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
 
-[[package]]
-name = "miniz_oxide"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
-dependencies = [
- "adler",
-]
-
 [[package]]
 name = "ntapi"
 version = "0.4.1"
@@ -352,15 +276,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "object"
-version = "0.32.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cf5f9dd3933bd50a9e1f149ec995f39ae2c496d31fd772c1fd45ebc27e902b0"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "percent-encoding"
 version = "2.3.0"
@@ -434,12 +349,6 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
-[[package]]
-name = "rustc-demangle"
-version = "0.1.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
-
 [[package]]
 name = "rustix"
 version = "0.38.19"
@@ -476,7 +385,7 @@ checksum = "1e48d1f918009ce3145511378cf68d613e3b3d9137d67272562080d68a2b32d5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.38",
+ "syn",
 ]
 
 [[package]]
@@ -494,17 +403,6 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.38"
@@ -516,18 +414,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "synstructure"
-version = "0.12.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 1.0.109",
- "unicode-xid",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.8.0"
@@ -541,6 +427,26 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1177e8c6d7ede7afde3585fd2513e611227efd6481bd78d2e82ba1ce16557ed4"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10712f02019e9288794769fba95cd6847df9874d49d871d062172f9dd41bc4cc"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -620,12 +526,6 @@ dependencies = [
  "tinyvec",
 ]
 
-[[package]]
-name = "unicode-xid"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
-
 [[package]]
 name = "url"
 version = "2.4.1"
@@ -662,7 +562,7 @@ dependencies = [
  "pulldown-cmark",
  "regex",
  "semver",
- "syn 2.0.38",
+ "syn",
  "toml",
  "url",
 ]
diff --git a/efivar/Cargo.toml b/efivar/Cargo.toml
index 374acc6d..be272102 100644
--- a/efivar/Cargo.toml
+++ b/efivar/Cargo.toml
@@ -17,7 +17,6 @@ edition = "2018"
 [dependencies]
 byteorder = "1.4.3"
 bitflags = "2.3.3"
-failure = "0.1.8"
 
 base64 = { version = "0.21.2", optional = true }
 serde = { version = "1.0.171", optional = true }
@@ -26,6 +25,7 @@ toml = { version = "0.7.6", optional = true }
 uuid = { version = "1.4.1", features = ["serde"] }
 lazy_static = "1.4.0"
 ntapi = "0.4.1"
+thiserror = "1.0.49"
 
 [features]
 store = ["base64", "serde", "serde_derive", "toml"]
diff --git a/efivar/src/error.rs b/efivar/src/error.rs
index bbd2bf5a..fdf56489 100644
--- a/efivar/src/error.rs
+++ b/efivar/src/error.rs
@@ -3,35 +3,35 @@ use std::io;
 use crate::efi::Variable;
 
 /// Describes an error returned by EFI variable operations
-#[derive(Debug, Fail)]
+#[derive(Debug, thiserror::Error)]
 pub enum Error {
-    #[fail(display = "failed to parse variable name: {}", name)]
+    #[error("failed to parse variable name: {}", name)]
     InvalidVarName { name: String },
-    #[fail(display = "variable not found: {}", name)]
+    #[error("variable not found: {}", name)]
     VarNotFound { name: Variable },
-    #[fail(display = "permission denied for variable: {}", name)]
+    #[error("permission denied for variable: {}", name)]
     PermissionDenied { name: Variable },
-    #[fail(display = "unknown i/o error for variable: {}", name)]
+    #[error("unknown i/o error for variable: {}", name)]
     VarUnknownError { name: Variable, error: io::Error },
-    #[fail(display = "base64 decoding error: {}", error)]
+    #[error("base64 decoding error: {}", error)]
     #[cfg(feature = "store")]
     Base64DecodeError { error: base64::DecodeError },
-    #[fail(display = "base64 decoding error: {}", error)]
+    #[error("base64 decoding error: {}", error)]
     #[cfg(feature = "store")]
     Base64DecodeSliceError { error: base64::DecodeSliceError },
-    #[fail(display = "unknown i/o error")]
+    #[error("unknown i/o error")]
     UnknownIoError { error: io::Error },
-    #[fail(display = "unknown EFI variable flag: '{}'", flag)]
+    #[error("unknown EFI variable flag: '{}'", flag)]
     UnknownFlag { flag: String },
-    #[fail(display = "failed to decode name as valid UTF-8")]
+    #[error("failed to decode name as valid UTF-8")]
     InvalidUTF8,
-    #[fail(display = "buffer too small for variable: {}", name)]
+    #[error("buffer too small for variable: {}", name)]
     BufferTooSmall { name: Variable },
-    #[fail(display = "failed to decode uuid: {}", error)]
+    #[error("failed to decode uuid: {}", error)]
     UuidError { error: uuid::Error },
-    #[fail(display = "failed to parse variable content (invalid content)")]
+    #[error("failed to parse variable content (invalid content)")]
     VarParseError,
-    #[fail(display = "failed to parse string: {}", 0)]
+    #[error("failed to parse string: {}", 0)]
     StringParseError(crate::utils::StringParseError),
 }
 
diff --git a/efivar/src/lib.rs b/efivar/src/lib.rs
index 4ce2e08c..85cdf9be 100644
--- a/efivar/src/lib.rs
+++ b/efivar/src/lib.rs
@@ -17,8 +17,6 @@
 #[macro_use]
 extern crate bitflags;
 #[macro_use]
-extern crate failure;
-#[macro_use]
 extern crate lazy_static;
 #[cfg(feature = "store")]
 #[macro_use]
diff --git a/efivar/src/utils.rs b/efivar/src/utils.rs
index 5c3be8ab..2faf4b18 100644
--- a/efivar/src/utils.rs
+++ b/efivar/src/utils.rs
@@ -1,12 +1,12 @@
 use byteorder::{LittleEndian, ReadBytesExt};
 
-#[derive(Debug, Fail)]
+#[derive(Debug, thiserror::Error)]
 pub enum StringParseError {
     /// occurs when you get an error while reading the data
-    #[fail(display = "Buffer read error: {}", 0)]
+    #[error("Buffer read error: {}", 0)]
     Read(std::io::Error),
     /// occurs when the bytes are not a valid UTF-16 string
-    #[fail(display = "Buffer parse error: {}", 0)]
+    #[error("Buffer parse error: {}", 0)]
     Parse(std::string::FromUtf16Error),
 }