diff --git a/.github/workflows/build-pylibjpeg-libjpeg.yml b/.github/workflows/build-pylibjpeg-libjpeg.yml
index 2f21405378c2..19fdb9a1fdc0 100644
--- a/.github/workflows/build-pylibjpeg-libjpeg.yml
+++ b/.github/workflows/build-pylibjpeg-libjpeg.yml
@@ -84,6 +84,13 @@ jobs:
           CIBW_ENVIRONMENT: >-
             PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
             PIP_ONLY_BINARY=numpy
+          # The test stage has its own environment (CIBW_ENVIRONMENT does not
+          # reach it). pillow is wheel-only there: its newest PyPI release has
+          # no riscv64 wheel (the registry has one), and the sdist can't build
+          # without jpeg headers.
+          CIBW_TEST_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            PIP_ONLY_BINARY=pillow,numpy
           CIBW_TEST_REQUIRES: pillow
           CIBW_TEST_COMMAND: >-
             python -c "import io;
diff --git a/docs/packages/pylibjpeg-libjpeg.yaml b/docs/packages/pylibjpeg-libjpeg.yaml
index 7b250716d2a6..69249f1fa19c 100644
--- a/docs/packages/pylibjpeg-libjpeg.yaml
+++ b/docs/packages/pylibjpeg-libjpeg.yaml
@@ -15,3 +15,4 @@ versions:
   - filename: pylibjpeg_libjpeg-2.4.0-cp314-cp314-manylinux_2_39_riscv64.whl
     sha256: 4f257ca2a01c74b7abe4210466e8b43fac27b83002acdf58815ec60086025e0a
     requires-python: '>=3.10,<4.0'
+- version: 2.5.0