diff --git a/bin/release_dev_stack.sh b/bin/release_dev_stack.sh
index 0353eef0..3394ed25 100755
--- a/bin/release_dev_stack.sh
+++ b/bin/release_dev_stack.sh
@@ -212,6 +212,16 @@ wait_for_pypi() {
         sleep 10
     done
 
+    attempts=0
+    until uv --no-cache pip install --dry-run --no-deps "${package}==${version}" >/dev/null
+    do
+        attempts=$((attempts + 1))
+        if [[ "$attempts" -ge "$PYPI_WAIT_ATTEMPTS" ]]; then
+            echo "[X] Timed out waiting for uv to resolve ${package}==${version} from PyPI" >&2
+            exit 1
+        fi
+        sleep 10
+    done
 }
 
 release_python_repo() {
diff --git a/etc/package.json b/etc/package.json
index 1fc43683..fd0913d7 100644
--- a/etc/package.json
+++ b/etc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "archivebox",
-  "version": "0.9.35rc20",
+  "version": "0.9.35rc21",
   "repository": "github:ArchiveBox/ArchiveBox",
   "license": "MIT",
   "dependencies": {
diff --git a/pyproject.toml b/pyproject.toml
index 2af545fb..fc8f218c 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "archivebox"
-version = "0.9.35rc20"
+version = "0.9.35rc21"
 requires-python = ">=3.13"
 description = "Self-hosted internet archiving solution."
 authors = [{name = "Nick Sweeting", email = "pyproject.toml@archivebox.io"}]