diff --git a/.gitignore b/.gitignore
index 056547e..b90a349 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /libdeflate-sys-0.7.5.crate
 /libdeflate-sys-1.19.0.crate
 /libdeflate-sys-1.19.2.crate
+/libdeflate-sys-1.19.3.crate
diff --git a/libdeflate-sys-1.19.3-unconditional-pkg-config.patch b/libdeflate-sys-1.19.3-unconditional-pkg-config.patch
new file mode 100644
index 0000000..1a17160
--- /dev/null
+++ b/libdeflate-sys-1.19.3-unconditional-pkg-config.patch
@@ -0,0 +1,15 @@
+diff -Naur libdeflate-sys-1.19.3-original/build.rs libdeflate-sys-1.19.3/build.rs
+--- libdeflate-sys-1.19.3-original/build.rs	2006-07-23 21:21:28.000000000 -0400
++++ libdeflate-sys-1.19.3/build.rs	2024-02-28 11:39:40.715923702 -0500
+@@ -5,11 +5,9 @@
+ fn main() {
+     let dst = PathBuf::from(env::var_os("OUT_DIR").unwrap());
+ 
+-    #[cfg(feature = "dynamic")]
+     if pkg_config::Config::new()
+         .print_system_libs(false)
+         .cargo_metadata(true)
+-        .exactly_version("1.19")
+         .probe("libdeflate")
+         .is_ok()
+     {
diff --git a/libdeflate-sys-fix-metadata.diff b/libdeflate-sys-fix-metadata.diff
new file mode 100644
index 0000000..d2e7a95
--- /dev/null
+++ b/libdeflate-sys-fix-metadata.diff
@@ -0,0 +1,12 @@
+--- libdeflate-sys-1.19.3/Cargo.toml	1970-01-01T00:00:01+00:00
++++ libdeflate-sys-1.19.3/Cargo.toml	2024-02-28T16:35:41.917707+00:00
+@@ -40,8 +40,7 @@
+ 
+ [build-dependencies.pkg-config]
+ version = "0.3.9"
+-optional = true
+ 
+ [features]
+-dynamic = ["pkg-config"]
++dynamic = []
+ freestanding = []
diff --git a/rust-libdeflate-sys.spec b/rust-libdeflate-sys.spec
index 99d007b..7abab7e 100644
--- a/rust-libdeflate-sys.spec
+++ b/rust-libdeflate-sys.spec
@@ -5,13 +5,27 @@
 %global crate libdeflate-sys
 
 Name:           rust-libdeflate-sys
-Version:        1.19.2
+Version:        1.19.3
 Release:        %autorelease
 Summary:        Bindings to libdeflate for DEFLATE
 
 License:        Apache-2.0
 URL:            https://crates.io/crates/libdeflate-sys
 Source:         %{crates_source}
+# Manually created patch for downstream crate metadata changes
+# - Make the dependency on crate(pkg-config) non-optional instead of
+#   associating it with the “dynamic” feature, since we patch the crate to
+#   always link dynamically with the system libdeflate, regardless of the
+#   selected features.
+Patch:          libdeflate-sys-fix-metadata.diff
+# Downstream-only: always link dynamically with the system libdeflate,
+# regardless of the selected features, and do not pin an exact version of
+# libdeflate.
+#
+# Together with libdeflate-sys-fix-metadata.diff, this effectively reverts:
+#   Dynamic Linking Constraints
+#   https://github.com/adamkewley/libdeflater/pull/32
+Patch:          libdeflate-sys-1.19.3-unconditional-pkg-config.patch
 
 BuildRequires:  cargo-rpm-macros >= 24
 
@@ -49,6 +63,18 @@ use the "default" feature of the "%{crate}" crate.
 %files       -n %{name}+default-devel
 %ghost %{crate_instdir}/Cargo.toml
 
+%package     -n %{name}+dynamic-devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description -n %{name}+dynamic-devel %{_description}
+
+This package contains library source intended for building other packages which
+use the "dynamic" feature of the "%{crate}" crate.
+
+%files       -n %{name}+dynamic-devel
+%ghost %{crate_instdir}/Cargo.toml
+
 %package     -n %{name}+freestanding-devel
 Summary:        %{summary}
 BuildArch:      noarch
diff --git a/sources b/sources
index cdfe4cb..f4122f0 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libdeflate-sys-1.19.2.crate) = 15dc085dd1943b402158dadf3438253e9e3ae444d848b64b5c377b43f40d4f6dc33555434c4e437bd845bf7c41222b69c34f9e9aa1fde4543a0008e85608d626
+SHA512 (libdeflate-sys-1.19.3.crate) = c1b708672f6ce85579e5dda2537fe6804e73d92053a08387b2ec09388f0697fa3230298931116f482ae4242a0bf7afda9d8f309a13222ef5dee94f56a009890e