diff --git a/.gitignore b/.gitignore
index 29d47f9..1aeae45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /libflate_lz77-1.0.0.crate
 /libflate_lz77-1.1.0.crate
+/libflate_lz77-1.2.0.crate
diff --git a/README.md b/README.md
deleted file mode 100644
index 20079bd..0000000
--- a/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# rust-libflate_lz77
-
-The rust-libflate_lz77 package
\ No newline at end of file
diff --git a/libflate_lz77-fix-metadata.diff b/libflate_lz77-fix-metadata.diff
new file mode 100644
index 0000000..9758926
--- /dev/null
+++ b/libflate_lz77-fix-metadata.diff
@@ -0,0 +1,30 @@
+--- libflate_lz77-1.2.0/Cargo.toml	1970-01-01T00:00:01+00:00
++++ libflate_lz77-1.2.0/Cargo.toml	2023-05-22T18:18:29.510490+00:00
+@@ -22,27 +22,11 @@
+ license = "MIT"
+ repository = "https://github.com/sile/libflate"
+ 
+-[dependencies.core2]
+-version = "0.4"
+-features = ["alloc"]
+-optional = true
+-default-features = false
+-
+-[dependencies.hashbrown]
+-version = "0.13"
+-optional = true
+-
+ [dependencies.rle-decode-fast]
+ version = "1.0.0"
+ 
+ [dev-dependencies.libflate]
+ version = "1"
+ 
+-[features]
+-no_std = [
+-    "core2",
+-    "hashbrown",
+-]
+-
+ [badges.coveralls]
+ repository = "sile/libflate"
diff --git a/rust-libflate_lz77.spec b/rust-libflate_lz77.spec
index 527dafa..843c558 100644
--- a/rust-libflate_lz77.spec
+++ b/rust-libflate_lz77.spec
@@ -1,25 +1,22 @@
-# Generated by rust2rpm 17
+# Generated by rust2rpm 24
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate libflate_lz77
 
-Name:           rust-%{crate}
-Version:        1.1.0
+Name:           rust-libflate_lz77
+Version:        1.2.0
 Release:        %autorelease
 Summary:        LZ77 encoder for libflate crate
 
-# Upstream license specification: MIT
 License:        MIT
 URL:            https://crates.io/crates/libflate_lz77
 Source:         %{crates_source}
+# Manually created patch for downstream crate metadata changes
+# * drop unused no_std feature with missing dependencies
+Patch:          libflate_lz77-fix-metadata.diff
 
-ExclusiveArch:  %{rust_arches}
-%if %{__cargo_skip_build}
-BuildArch:      noarch
-%endif
-
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
 LZ77 encoder for libflate crate.}
@@ -32,13 +29,13 @@ 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
-%doc README.md
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/LICENSE
+%doc %{crate_instdir}/README.md
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -46,11 +43,11 @@ 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/sources b/sources
index fe6c878..3be861e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libflate_lz77-1.1.0.crate) = ab0cba9d324d2f7bf2a741e8ef8b0ee7bfa85ab6ee63b9ccf6ff912461ca854d6b7467e527d74ee93a219d6dec5bcecc3e61eea83d4cf5b2452f9a0aa97cd95c
+SHA512 (libflate_lz77-1.2.0.crate) = 5aeb0d1ab0bef43a87552f93dca760450e6fcb0213c9dfdc0ed2f72fcb6ee1b26add02705f7c5a8552c975c9673b1a147fa036b6f4c42c07675a11b3cb1929d0