diff --git a/.github/workflows/build-psd-tools.yml b/.github/workflows/build-psd-tools.yml
index b6d4a01dbb15..92c4f6f6c612 100644
--- a/.github/workflows/build-psd-tools.yml
+++ b/.github/workflows/build-psd-tools.yml
@@ -88,6 +88,12 @@ jobs:
           # Upstream's own test-skip = "*" (it tests via `uv run pytest` against
           # a checkout, not through cibuildwheel) skips every identifier here too.
           CIBW_TEST_SKIP: ''
+          # Installing the wheel resolves numpy and Pillow; only our registry has riscv64
+          # wheels for them, so only-binary keeps a newer PyPI release (sdist only here)
+          # from winning the resolution and compiling from source.
+          CIBW_TEST_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            PIP_ONLY_BINARY=numpy,Pillow
           CIBW_TEST_REQUIRES: pytest
           CIBW_TEST_SOURCES: tests/psd_tools/compression
           # --import-mode=importlib: Python 3.14 added a real stdlib
diff --git a/docs/packages/psd-tools.yaml b/docs/packages/psd-tools.yaml
index 2baf3e592454..f832187f8de1 100644
--- a/docs/packages/psd-tools.yaml
+++ b/docs/packages/psd-tools.yaml
@@ -56,3 +56,4 @@ versions:
   - filename: psd_tools-1.25.0-cp314-cp314t-manylinux_2_31_riscv64.manylinux_2_39_riscv64.whl
     sha256: 84ad68ccecc0dda28144ef51bdee66ad08ae492adee81b59f1c2ce379fae741a
     requires-python: '>=3.11'
+- version: 1.26.0