diff --git a/.gitignore b/.gitignore
index 6d9e556..033ace7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /below-model-0.4.1.crate
 /below-model-0.5.0.crate
+/below-model-0.6.3.crate
diff --git a/below-model-fix-metadata.diff b/below-model-fix-metadata.diff
new file mode 100644
index 0000000..84dc3e8
--- /dev/null
+++ b/below-model-fix-metadata.diff
@@ -0,0 +1,14 @@
+--- below-model-0.6.3/Cargo.toml	1970-01-01T00:00:01+00:00
++++ below-model-0.6.3/Cargo.toml	2023-01-19T03:22:16.573672+00:00
+@@ -58,11 +58,6 @@
+ 
+ [dependencies.regex]
+ version = "1.5.4"
+-features = [
+-    "std",
+-    "unicode-perl",
+-]
+-default-features = false
+ 
+ [dependencies.serde]
+ version = "1.0.136"
diff --git a/rust-below-model.spec b/rust-below-model.spec
index d4c55d8..b7ddff5 100644
--- a/rust-below-model.spec
+++ b/rust-below-model.spec
@@ -1,22 +1,25 @@
-# Generated by rust2rpm 20
+# Generated by rust2rpm 23
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate below-model
 
-Name:           rust-%{crate}
-Version:        0.5.0
+Name:           rust-below-model
+Version:        0.6.3
 Release:        %autorelease
 Summary:        Model crate for below
 
-# Upstream license specification: Apache-2.0
-License:        ASL 2.0
+License:        Apache-2.0
 URL:            https://crates.io/crates/below-model
 Source:         %{crates_source}
+# Manually created patch for downstream crate metadata changes
+# - restore use of regex default features (back out https://github.com/facebookincubator/below/pull/8164)
+Patch:          below-model-fix-metadata.diff
 
-ExclusiveArch:  %{rust_arches}
+# below-btrfs is not available
+ExcludeArch:    %{ix86}
 
-BuildRequires:  rust-packaging
+BuildRequires:  rust-packaging >= 21
 
 %global _description %{expand:
 Model crate for below.}
@@ -33,8 +36,8 @@ This package contains library source intended for building other packages which
 use the "%{crate}" crate.
 
 %files          devel
-%license LICENSE
-%{cargo_registry}/%{crate}-%{version_no_tilde}/
+%license %{crate_instdir}/LICENSE
+%{crate_instdir}/
 
 %package     -n %{name}+default-devel
 Summary:        %{summary}
@@ -46,7 +49,7 @@ 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 1ce567b..ad7ea9d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (below-model-0.5.0.crate) = 13a34c79d4fe14bf508569a693a84a2e05c416debcff7dded421254bea6e1f0386fba44146bd4c5a1a9576bcbec25bb708c9d16ebfbf439b8e966e0bb00a7768
+SHA512 (below-model-0.6.3.crate) = 6c65279937a569a4ee4b4616de327e3847a3f284c86e583afe526febad68f715e34602cd853a70f9762fc278c310f6bab048c626c2ee6983796eb4923f4edd1a