diff --git a/.gitignore b/.gitignore
index 8d7ae02..96dc1e2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,4 +24,3 @@
 /orjson-3.11.1-filtered.tar.xz
 /orjson-3.11.2-filtered.tar.xz
 /orjson-3.11.3-filtered.tar.xz
-/orjson-3.11.4-filtered.tar.xz
diff --git a/python-orjson.spec b/python-orjson.spec
index 33e673e..67c680f 100644
--- a/python-orjson.spec
+++ b/python-orjson.spec
@@ -9,21 +9,41 @@
 # Not yet in EPEL10: https://bugzilla.redhat.com/show_bug.cgi?id=2356387
 %bcond pendulum %{undefined el10}
 
+# By default, orjson uses a bundled copy of the C library yyjson,
+# https://github.com/ibireme/yyjson, as the JSON deserialization backend. It is
+# forked (customized) and compiled with a particular set of options via
+# preprocessor defines (see build.rs), so it is not a candidate for unbundling.
+#
+# We do have the option to disable the yyjson backend, in which case the json
+# crate from the Rust standard library, https://docs.rs/json, is used instead.
+%bcond yyjson 0
+
 Name:           python-orjson
-Version:        3.11.4
+Version:        3.11.3
 Release:        %autorelease
 Summary:        Fast, correct Python JSON library
 
 # The entire source is (Apache-2.0 OR MIT), except:
 #
+%if %{with yyjson}
 # MIT:
 # - include/yyjson/yyjson.c
 # - include/yyjson/yyjson.h
 #
+%endif
 # Apache-2.0:
 # - src/serialize/writer/str/mod.rs
 # - src/serialize/writer/str/sse2.rs
-License:        (Apache-2.0 OR MIT) AND Apache-2.0 AND MIT
+License:        (Apache-2.0 OR MIT) AND Apache-2.0%{?with_yyjson: AND MIT}
+%if %{without yyjson}
+# Additionally, the following are removed in %%prep and do not contribute to
+# the licenses of the binary RPMs:
+#
+# MIT:
+# - include/yyjson/yyjson.c
+# - include/yyjson/yyjson.h
+%endif
+SourceLicense:  (Apache-2.0 OR MIT) AND Apache-2.0 AND MIT
 URL:            https://github.com/ijl/orjson
 # We must be careful about the source archive.
 #
@@ -76,7 +96,6 @@ Summary:        %{summary}
 # (Apache-2.0 OR MIT) AND BSD-3-Clause
 # Apache-2.0 OR BSL-1.0
 # Apache-2.0 OR MIT
-# BSD-2-Clause OR Apache-2.0 OR MIT
 # BSL-1.0
 # MIT
 # MIT OR Apache-2.0
@@ -87,24 +106,16 @@ License:        %{shrink:
                 (Apache-2.0 OR MIT) AND
                 Apache-2.0 AND
                 (Apache-2.0 OR BSL-1.0) AND
-                (Apache-2.0 OR BSD-2-Clause OR MIT) AND
                 BSD-3-Clause AND
                 BSL-1.0 AND
                 MIT AND
                 (Unlicense OR MIT)
                 }
 
+%if %{with yyjson}
 # Version from YYJSON_VERSION_STRING in include/yyjson/yyjson.h
-#
-# Since version 3.11.4, orjson unconditionally uses a bundled copy of the C
-# library yyjson, https://github.com/ibireme/yyjson, as the JSON
-# deserialization backend. It is forked (customized) and compiled with a
-# particular set of options via preprocessor defines (see build.rs), so it is
-# not a candidate for unbundling. (Prior to version 3.11.4, this could be
-# disabled, and the json crate from the Rust standard library,
-# https://docs.rs/json, would be used instead, but this is no longer
-# supported.)
 Provides:       bundled(yyjson) = 0.9.0
+%endif
 
 %description -n python3-orjson %{_description}
 
@@ -117,6 +128,10 @@ Provides:       bundled(yyjson) = 0.9.0
 # “Avoid bundling libgcc on musl.”
 tomcli-set Cargo.toml del 'features.unwind'
 tomcli-set Cargo.toml del 'dependencies.unwinding'
+%if %{without yyjson}
+# Remove bundled yyjson.
+rm -rv include/yyjson/
+%endif
 
 %if %{without pendulum}
 sed -i '/^pendulum\b/d' test/requirements.txt
@@ -137,6 +152,9 @@ sed -i '/pytest-random-order/d' test/requirements.txt
 export RUSTFLAGS='%{build_rustflags}'
 %cargo_license_summary
 %{cargo_license} > LICENSES.dependencies
+%if %{without yyjson}
+export ORJSON_DISABLE_YYJSON=1
+%endif
 %pyproject_wheel
 
 
diff --git a/sources b/sources
index 18ca5d3..9caac9e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (orjson-3.11.4-filtered.tar.xz) = 1a457a91dfa1918341acfebcdb86ddf92b5776f166be9dbd16a4253f55140ae0bc90f911ceb3a9b33abd963be22f089aa2764b25e1701691298c0e8840c8225a
+SHA512 (orjson-3.11.3-filtered.tar.xz) = 1a1447046743469c20b43c1ab99a752e48f91828d0a13e0587fad1174640c6355f5fd973e25c0bc8950852992020852d202184cfe0b7aeb309e2a0c3d1b5feae