diff --git a/.release-please-config.json b/.release-please-config.json
index c80cc4a87..1f1853d88 100644
--- a/.release-please-config.json
+++ b/.release-please-config.json
@@ -1,5 +1,6 @@
 {
   "separate-pull-requests": true,
+  "bootstrap-sha": "7e82c76c4c7bba9d1d9d4850c75b56cc790d992f",
   "packages": {
     ".": {
       "release-type": "python",
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index bb87e5661..dde13bbbc 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -2,7 +2,7 @@
   ".": "1.9.0",
   "packages/loop_common": "0.1.0",
   "packages/loop_interpolation": "0.1.0",
-  "packages/loop_interpolation_core": "0.1.0",
+  "packages/loop_interpolation_core": "0.0.0",
   "packages/map2loop": "3.5.1",
   "packages/loopstructural_visualisation": "0.2.2"
 }