diff --git a/.gitignore b/.gitignore
index d0f9b4b..2f4f791 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@
 /darling_core-0.14.3.crate
 /darling_core-0.14.4.crate
 /darling_core-0.20.3.crate
+/darling_core-0.20.4.crate
diff --git a/rust-darling_core.spec b/rust-darling_core.spec
index 5dad0b9..741162f 100644
--- a/rust-darling_core.spec
+++ b/rust-darling_core.spec
@@ -1,11 +1,11 @@
-# Generated by rust2rpm 24
+# Generated by rust2rpm 25
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate darling_core
 
 Name:           rust-darling_core
-Version:        0.20.3
+Version:        0.20.4
 Release:        %autorelease
 Summary:        Parse attributes into structs for custom derive implementations (helper crate)
 
@@ -13,7 +13,7 @@ License:        MIT
 URL:            https://crates.io/crates/darling_core
 Source:         %{crates_source}
 
-BuildRequires:  rust-packaging >= 21
+BuildRequires:  cargo-rpm-macros >= 24
 
 %global _description %{expand:
 Helper crate for proc-macro library for reading attributes into structs
@@ -84,7 +84,7 @@ use the "suggestions" feature of the "%{crate}" crate.
 %ghost %{crate_instdir}/Cargo.toml
 
 %prep
-%autosetup -n %{crate}-%{version_no_tilde} -p1
+%autosetup -n %{crate}-%{version} -p1
 %cargo_prep
 
 %generate_buildrequires
diff --git a/rust2rpm.conf b/rust2rpm.conf
deleted file mode 100644
index bebb6e2..0000000
--- a/rust2rpm.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-[DEFAULT]
-summary = Parse attributes into structs for custom derive implementations (helper crate)
diff --git a/rust2rpm.toml b/rust2rpm.toml
new file mode 100644
index 0000000..3d51b16
--- /dev/null
+++ b/rust2rpm.toml
@@ -0,0 +1,3 @@
+[package]
+summary = "Parse attributes into structs for custom derive implementations (helper crate)"
+
diff --git a/sources b/sources
index 4058119..0803d0f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (darling_core-0.20.3.crate) = e655d0fe74f2015f60c749480a55e701076ea003e2263a65d2263293de038c8b4fe2b4103b2b6b95db63ac465e0623970fc54ff176177e7d7ce248330af99d7f
+SHA512 (darling_core-0.20.4.crate) = 27ca329192eec40905234305398f8d9ce31088aa6bcca1bc7ead7e531e98afa4cc30836cd646b655740e29e6d4ef2ab4b6708245633453244d2239e1a999ce15