diff --git a/dev-python/orjson/orjson-3.11.7.ebuild b/dev-python/orjson/orjson-3.11.7.ebuild
index 875e277fe148a..a6ccf4139f53e 100644
--- a/dev-python/orjson/orjson-3.11.7.ebuild
+++ b/dev-python/orjson/orjson-3.11.7.ebuild
@@ -9,6 +9,7 @@ PYPI_VERIFY_REPO=https://github.com/ijl/orjson
 PYTHON_COMPAT=( python3_{11..14} )
 
 # upstream is vendoring crates, so we don't need CRATES.
+RUST_MAX_VER="1.94.1" # bug #972911
 RUST_MIN_VER="1.89.0"
 
 inherit cargo distutils-r1 pypi
diff --git a/dev-python/orjson/orjson-3.11.8.ebuild b/dev-python/orjson/orjson-3.11.8.ebuild
index ad1a146e2a082..fbba6206cb560 100644
--- a/dev-python/orjson/orjson-3.11.8.ebuild
+++ b/dev-python/orjson/orjson-3.11.8.ebuild
@@ -11,6 +11,7 @@ PYTHON_COMPAT=( python3_{11..14} )
 # upstream is vendoring crates, so we don't need CRATES.
 CRATES="
 "
+RUST_MAX_VER="1.94.1" # bug #972911
 RUST_MIN_VER="1.89.0"
 
 inherit cargo distutils-r1 pypi