diff --git a/.gitignore b/.gitignore
index 71dacda..dd2ccb8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /skeptic-0.13.4.crate
 /skeptic-0.13.5.crate
 /skeptic-0.13.6.crate
+/skeptic-0.13.7.crate
diff --git a/0001-port-to-cargo_metadata-0.15.patch b/0001-port-to-cargo_metadata-0.15.patch
new file mode 100644
index 0000000..1429304
--- /dev/null
+++ b/0001-port-to-cargo_metadata-0.15.patch
@@ -0,0 +1,40 @@
+From df60bb467d13d6d1d04d302bc5c0c4b3ce955789 Mon Sep 17 00:00:00 2001
+From: Fabio Valentini <decathorpe@gmail.com>
+Date: Sat, 20 May 2023 17:24:33 +0200
+Subject: [PATCH] port to cargo_metadata 0.15
+
+---
+ src/rt.rs | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/rt.rs b/src/rt.rs
+index 4c59754..7d4b9c5 100644
+--- a/src/rt.rs
++++ b/src/rt.rs
+@@ -5,9 +5,9 @@ use std::ffi::OsStr;
+ use std::fs;
+ use std::path::{Path, PathBuf};
+ use std::process::Command;
+-use std::str::FromStr;
+ use std::time::SystemTime;
+ 
++use cargo_metadata::Edition;
+ use error_chain::error_chain;
+ use walkdir::WalkDir;
+ 
+@@ -76,10 +76,10 @@ fn handle_test(
+         .packages
+         .iter()
+         .map(|package| &package.edition)
+-        .max_by_key(|edition| u64::from_str(edition).unwrap())
++        .max_by_key(|edition| *edition)
+         .unwrap()
+         .clone();
+-    if edition != "2015" {
++    if edition != Edition::E2015 {
+         cmd.arg(format!("--edition={}", edition));
+     }
+ 
+-- 
+2.40.1
+
diff --git a/README.md b/README.md
deleted file mode 100644
index 3409085..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# rust-skeptic
-
-The rust-skeptic package
\ No newline at end of file
diff --git a/rust-skeptic.spec b/rust-skeptic.spec
index d6c2b16..aca4bc2 100644
--- a/rust-skeptic.spec
+++ b/rust-skeptic.spec
@@ -1,26 +1,25 @@
-# Generated by rust2rpm 16
-# * Needs test files not provided in the crate
+# Generated by rust2rpm 24
+# * files required by tests are not included in published crates
 %bcond_with check
 %global debug_package %{nil}
 
 %global crate skeptic
 
-Name:           rust-%{crate}
-Version:        0.13.6
+Name:           rust-skeptic
+Version:        0.13.7
 Release:        %autorelease
 Summary:        Test your Rust markdown documentation via Cargo
 
 # Upstream license specification: MIT/Apache-2.0
-License:        MIT or ASL 2.0
+License:        MIT OR Apache-2.0
 URL:            https://crates.io/crates/skeptic
 Source:         %{crates_source}
+# Manually created patch for downstream crate metadata changes
+# * bump cargo_metadata dependency from ^0.14 to ^0.15
+Patch:          skeptic-fix-metadata.diff
+Patch:          0001-port-to-cargo_metadata-0.15.patch
 
-ExclusiveArch:  %{rust_arches}
-%if %{__cargo_skip_build}
-BuildArch:      noarch
-%endif
-
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
 Test your Rust markdown documentation via Cargo.}
@@ -33,12 +32,13 @@ BuildArch:      noarch
 
 %description    devel %{_description}
 
-This package contains library source intended for building other packages
-which use "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "%{crate}" crate.
 
 %files          devel
-%license LICENSE-MIT LICENSE-APACHE
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/LICENSE-APACHE
+%license %{crate_instdir}/LICENSE-MIT
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -46,11 +46,11 @@ BuildArch:      noarch
 
 %description -n %{name}+default-devel %{_description}
 
-This package contains library source intended for building other packages
-which use "default" feature of "%{crate}" crate.
+This package contains library source intended for building other packages which
+use the "default" feature of the "%{crate}" crate.
 
 %files       -n %{name}+default-devel
-%ghost %{cargo_registry}/%{crate}-%{version_no_tilde}/Cargo.toml
+%ghost %{crate_instdir}/Cargo.toml
 
 %prep
 %autosetup -n %{crate}-%{version_no_tilde} -p1
diff --git a/skeptic-fix-metadata.diff b/skeptic-fix-metadata.diff
new file mode 100644
index 0000000..d5405cc
--- /dev/null
+++ b/skeptic-fix-metadata.diff
@@ -0,0 +1,11 @@
+--- skeptic-0.13.7/Cargo.toml	1970-01-01T00:00:01+00:00
++++ skeptic-0.13.7/Cargo.toml	2023-05-20T15:20:26.554151+00:00
+@@ -25,7 +25,7 @@
+ version = "0.6"
+ 
+ [dependencies.cargo_metadata]
+-version = "0.14"
++version = "0.15"
+ 
+ [dependencies.error-chain]
+ version = "0.12"
diff --git a/sources b/sources
index 5e211e9..00bdfa5 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (skeptic-0.13.6.crate) = 9c3f5d30fa3b189fe6ab571e8161a5db6b3b4d833888aa625692d00bd3e8e8a8ad1972c989e447367bdb883552c96480ed4b27c60f6d76094f3c6ecbaf4d3e2d
+SHA512 (skeptic-0.13.7.crate) = 51e1fcaa068f380f53ee43dbfbdd17967a647739468d932e1ccc97c89021fca67a7dc6f9026c4d2554c786c6c0de3a326d4e964b6695625187340da6fed9ac16