diff --git a/base/comps/components-full.toml b/base/comps/components-full.toml
index 2e3337b76f7..efb7e0aa041 100644
--- a/base/comps/components-full.toml
+++ b/base/comps/components-full.toml
@@ -6401,7 +6401,6 @@
 [components.rust-serial_test]
 [components.rust-serial_test_derive2]
 [components.rust-serial_test_derive]
-[components.'rust-servo_arc0.3']
 [components.rust-servo_arc]
 [components.rust-sev]
 [components.rust-sevctl]
diff --git a/base/comps/rust-servo_arc0.3/rust-servo_arc0.3.comp.toml b/base/comps/rust-servo_arc0.3/rust-servo_arc0.3.comp.toml
new file mode 100644
index 00000000000..60b60c8d097
--- /dev/null
+++ b/base/comps/rust-servo_arc0.3/rust-servo_arc0.3.comp.toml
@@ -0,0 +1,5 @@
+[components.'rust-servo_arc0.3']
+# Pin to the f43 commit used to build the current Fedora 43 package.
+# TODO: Drop this override once the default Fedora 43 snapshot
+# in distro/azurelinux.distro.toml advances past this commit.
+spec = { type = "upstream", upstream-name = "rust-servo_arc", upstream-distro = { name = "fedora", version = "43" }, upstream-commit = "baeff0cac3a538d99181420a129a2fec49033ec6" }