diff --git a/manywheel/Dockerfile_2_28 b/manywheel/Dockerfile_2_28
index c1e96d5ed..4b20d417f 100644
--- a/manywheel/Dockerfile_2_28
+++ b/manywheel/Dockerfile_2_28
@@ -12,7 +12,11 @@ RUN yum install -y sudo wget curl perl util-linux xz bzip2 git patch which perl
 ENV PATH=/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/bin:$PATH
 ENV LD_LIBRARY_PATH=/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/lib64:/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/lib:$LD_LIBRARY_PATH
 # Install setuptools and wheel for python 3.12/3.13
-RUN for cpython_version in "cp312-cp312" "cp313-cp313" "cp313-cp313t"; do \
+# Note: cp313-cp313t (free-threaded 3.13) was dropped from the upstream
+# manylinux_2_28_x86_64 image; the free-threaded interpreter ships under
+# cp314-cp314t / cp315-cp315t now. Iterating over a non-existent
+# /opt/python/cp313-cp313t/bin/python fails the build with exit 127.
+RUN for cpython_version in "cp312-cp312" "cp313-cp313"; do \
     /opt/python/${cpython_version}/bin/python -m pip install setuptools wheel; \
     done;