diff --git a/bin/release_dev_stack.sh b/bin/release_dev_stack.sh
index ae6f42f7..afd46631 100755
--- a/bin/release_dev_stack.sh
+++ b/bin/release_dev_stack.sh
@@ -173,6 +173,22 @@ PY
         fi
         sleep 10
     done
+
+    local tmpdir
+    tmpdir="$(mktemp -d)"
+    uv --no-cache venv "${tmpdir}/venv" --python 3.13 >/dev/null
+    attempts=0
+    until uv --no-cache pip install --dry-run --no-deps --python "${tmpdir}/venv/bin/python" "${package}==${version}" >/dev/null
+    do
+        attempts=$((attempts + 1))
+        if [[ "$attempts" -ge 30 ]]; then
+            rm -rf "$tmpdir"
+            echo "[X] Timed out waiting for uv to resolve ${package}==${version} from PyPI" >&2
+            exit 1
+        fi
+        sleep 10
+    done
+    rm -rf "$tmpdir"
 }
 
 release_python_repo() {
diff --git a/etc/package.json b/etc/package.json
index 1bdd2c3a..80bd0e60 100644
--- a/etc/package.json
+++ b/etc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "archivebox",
-  "version": "0.9.31rc19",
+  "version": "0.9.31rc20",
   "repository": "github:ArchiveBox/ArchiveBox",
   "license": "MIT",
   "dependencies": {
diff --git a/pyproject.toml b/pyproject.toml
index 95ba6314..3aba41e5 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "archivebox"
-version = "0.9.31rc19"
+version = "0.9.31rc20"
 requires-python = ">=3.13"
 description = "Self-hosted internet archiving solution."
 authors = [{name = "Nick Sweeting", email = "pyproject.toml@archivebox.io"}]
@@ -79,9 +79,9 @@ dependencies = [
     ### Extractor dependencies (optional binaries detected at runtime via shutil.which)
     ### Binary/Package Management
     "abxbus>=2.5.4",          # EventBus API
-    "abxpkg>=1.10.13",         # for: detecting, versioning, and installing binaries via apt/brew/pip/npm
-    "abx-plugins>=1.10.79",   # shared ArchiveBox plugin package with Chrome/Puppeteer dependency wiring
-    "abx-dl>=1.10.79",        # shared ArchiveBox downloader package with blocking install preflight
+    "abxpkg>=1.10.14",         # for: detecting, versioning, and installing binaries via apt/brew/pip/npm
+    "abx-plugins>=1.10.80",   # shared ArchiveBox plugin package with Chrome/Puppeteer dependency wiring
+    "abx-dl>=1.10.80",        # shared ArchiveBox downloader package with blocking install preflight
     ### UUID7 backport for Python <3.14
     "uuid7>=0.1.0; python_version < '3.14'",  # provides the uuid_extensions module on Python 3.13
 ]