diff --git a/.gitignore b/.gitignore
index 68d60b9..da93dbe 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /backtrace-0.3.5.crate
 /backtrace-0.3.6.crate
 /backtrace-0.3.7.crate
+/backtrace-0.3.8.crate
diff --git a/backtrace-0.3.6-fix-metadata.diff b/backtrace-0.3.6-fix-metadata.diff
deleted file mode 100644
index 95102d5..0000000
--- a/backtrace-0.3.6-fix-metadata.diff
+++ /dev/null
@@ -1,57 +0,0 @@
---- backtrace-0.3.6/Cargo.toml	1969-12-31T16:00:00-08:00
-+++ backtrace-0.3.6/Cargo.toml	2018-04-13T23:13:20.946621-07:00
-@@ -20,9 +20,6 @@
- readme = "README.md"
- license = "MIT/Apache-2.0"
- repository = "https://github.com/alexcrichton/backtrace-rs"
--[dependencies.addr2line]
--version = "0.6.0"
--optional = true
- 
- [dependencies.cfg-if]
- version = "0.1"
-@@ -31,22 +28,6 @@
- version = "0.2.3"
- optional = true
- default-features = false
--
--[dependencies.findshlibs]
--version = "0.3.3"
--optional = true
--
--[dependencies.gimli]
--version = "0.15.0"
--optional = true
--
--[dependencies.memmap]
--version = "0.6.2"
--optional = true
--
--[dependencies.object]
--version = "0.7.0"
--optional = true
- 
- [dependencies.rustc-demangle]
- version = "0.1.4"
-@@ -64,12 +45,8 @@
- optional = true
- 
- [features]
--coresymbolication = []
--dbghelp = ["winapi"]
--default = ["libunwind", "libbacktrace", "coresymbolication", "dladdr", "dbghelp"]
-+default = ["libunwind", "libbacktrace", "dladdr"]
- dladdr = []
--gimli-symbolize = ["addr2line", "findshlibs", "gimli", "memmap", "object"]
--kernel32 = []
- libbacktrace = ["backtrace-sys"]
- libunwind = []
- serialize-rustc = ["rustc-serialize"]
-@@ -80,7 +57,3 @@
- optional = true
- [target."cfg(unix)".dependencies.libc]
- version = "0.2"
--[target."cfg(windows)".dependencies.winapi]
--version = "0.3.3"
--features = ["std", "dbghelp", "processthreadsapi", "winnt", "minwindef"]
--optional = true
diff --git a/backtrace-0.3.8-fix-metadata.diff b/backtrace-0.3.8-fix-metadata.diff
new file mode 100644
index 0000000..a039004
--- /dev/null
+++ b/backtrace-0.3.8-fix-metadata.diff
@@ -0,0 +1,58 @@
+--- backtrace-0.3.8/Cargo.toml	1970-01-01T01:00:00+01:00
++++ backtrace-0.3.8/Cargo.toml	2018-05-23T11:45:08.960264+02:00
+@@ -20,10 +20,6 @@
+ readme = "README.md"
+ license = "MIT/Apache-2.0"
+ repository = "https://github.com/alexcrichton/backtrace-rs"
+-[dependencies.addr2line]
+-version = "0.6.0"
+-optional = true
+-
+ [dependencies.cfg-if]
+ version = "0.1"
+ 
+@@ -31,22 +27,6 @@
+ version = "0.2.3"
+ optional = true
+ default-features = false
+-
+-[dependencies.findshlibs]
+-version = "0.3.3"
+-optional = true
+-
+-[dependencies.gimli]
+-version = "0.15.0"
+-optional = true
+-
+-[dependencies.memmap]
+-version = "0.6.2"
+-optional = true
+-
+-[dependencies.object]
+-version = "0.7.0"
+-optional = true
+ 
+ [dependencies.rustc-demangle]
+ version = "0.1.4"
+@@ -64,12 +44,8 @@
+ optional = true
+ 
+ [features]
+-coresymbolication = []
+-dbghelp = ["winapi"]
+-default = ["libunwind", "libbacktrace", "coresymbolication", "dladdr", "dbghelp"]
++default = ["libunwind", "libbacktrace", "dladdr"]
+ dladdr = []
+-gimli-symbolize = ["addr2line", "findshlibs", "gimli", "memmap", "object"]
+-kernel32 = []
+ libbacktrace = ["backtrace-sys"]
+ libunwind = []
+ serialize-rustc = ["rustc-serialize"]
+@@ -80,7 +56,3 @@
+ optional = true
+ [target."cfg(unix)".dependencies.libc]
+ version = "0.2"
+-[target."cfg(windows)".dependencies.winapi]
+-version = "0.3.3"
+-features = ["std", "dbghelp", "processthreadsapi", "winnt", "minwindef"]
+-optional = true
diff --git a/rust-backtrace.spec b/rust-backtrace.spec
index c0f8b45..162510a 100644
--- a/rust-backtrace.spec
+++ b/rust-backtrace.spec
@@ -5,7 +5,7 @@
 %global crate backtrace
 
 Name:           rust-%{crate}
-Version:        0.3.7
+Version:        0.3.8
 Release:        1%{?dist}
 Summary:        Library to acquire a stack trace (backtrace) at runtime in a Rust program
 
@@ -15,13 +15,13 @@ Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{
 # Initial patched metadata
 # * No windows/osx
 # * No addr2line due to backtrace(opt) -> addr2line -> error-chain(opt) -> backtrace 
-Patch0:         backtrace-0.3.6-fix-metadata.diff
+Patch0:         backtrace-0.3.8-fix-metadata.diff
 
 ExclusiveArch:  %{rust_arches}
 
 BuildRequires:  rust-packaging
 # [dependencies]
-BuildRequires:  (crate(backtrace-sys) >= 0.1.3 with crate(backtrace-sys) < 0.2.0)
+BuildRequires:  (crate(backtrace-sys) >= 0.1.17 with crate(backtrace-sys) < 0.2.0)
 BuildRequires:  (crate(cfg-if) >= 0.1.0 with crate(cfg-if) < 0.2.0)
 BuildRequires:  (crate(cpp_demangle) >= 0.2.3 with crate(cpp_demangle) < 0.3.0)
 BuildRequires:  (crate(libc) >= 0.2.0 with crate(libc) < 0.3.0)
@@ -65,6 +65,9 @@ which use %{crate} from crates.io.
 %exclude %{cargo_registry}/%{crate}-%{version}/appveyor.yml
 
 %changelog
+* Wed May 23 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.3.8-1
+- Update to 0.3.8
+
 * Fri May 04 2018 Josh Stone <jistone@redhat.com> - 0.3.7-1
 - Update to 0.3.7
 
diff --git a/sources b/sources
index 131f15b..7d527d1 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (backtrace-0.3.7.crate) = a3f0d8bfef2158310c65f41e246323b0953147a017dbe47143b8dc2e1734c945f13b49732a16f1712a3b5a27a23f27a38778d8185c64a7982948aace69c079af
+SHA512 (backtrace-0.3.8.crate) = e828e35e0e1f2f0b28688e8caf39cc26463b92cd87ab7f1d7d23ed11c6ad7b9a7b8237b7fe84973454bdda36c46db96532c7ad6e305e698a8b855031fd27fb04