diff --git a/docs/configuration.md b/docs/configuration.md
index 5ccb1fb5274fe83c48af196f61a80412b14c05cf..344ff6c7f364a0165511f014a1d18148e7f82a24 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -609,7 +609,7 @@ location with this method.
   <td>`prNotPendingHours`</td>
   <td>Timeout in hours for when prCreation=not-pending</td>
   <td>integer</td>
-  <td><pre>12</pre></td>
+  <td><pre>24</pre></td>
   <td>`RENOVATE_PR_NOT_PENDING_HOURS`</td>
   <td>`--pr-not-pending-hours`<td>
 </tr>
diff --git a/lib/config/definitions.js b/lib/config/definitions.js
index 1f656c24745e07adf010f34044ed736b00f2e2f5..ecd73e3a5deb6cb0f5c49bb4f351d619b0d381a8 100644
--- a/lib/config/definitions.js
+++ b/lib/config/definitions.js
@@ -495,7 +495,8 @@ const options = [
     name: 'prNotPendingHours',
     description: 'Timeout in hours for when prCreation=not-pending',
     type: 'integer',
-    default: 12,
+    // Must be at least 24 hours to give time for the unpublishSafe check to "complete".
+    default: 24,
   },
   // Automatic merging
   {
diff --git a/test/manager/__snapshots__/resolve.spec.js.snap b/test/manager/__snapshots__/resolve.spec.js.snap
index e62eb84483461e2287caf899b7d19f7e016c661f..d1ce9c9ba38e235494a88349f57a0c353bf24164 100644
--- a/test/manager/__snapshots__/resolve.spec.js.snap
+++ b/test/manager/__snapshots__/resolve.spec.js.snap
@@ -502,7 +502,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -1040,7 +1040,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -1834,7 +1834,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -2367,7 +2367,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -2891,7 +2891,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -3415,7 +3415,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -3948,7 +3948,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
diff --git a/test/workers/package/__snapshots__/index.spec.js.snap b/test/workers/package/__snapshots__/index.spec.js.snap
index 8cb541f64089e1cb41fd288ff319e12c23138581..8008d812107dcbaeb2e548a07763b6380204f756 100644
--- a/test/workers/package/__snapshots__/index.spec.js.snap
+++ b/test/workers/package/__snapshots__/index.spec.js.snap
@@ -139,7 +139,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "rebaseStalePrs": true,
   "recreateClosed": true,
diff --git a/test/workers/repository/updates/__snapshots__/branchify.spec.js.snap b/test/workers/repository/updates/__snapshots__/branchify.spec.js.snap
index c59cd6f308c5b03be245237b396f8f0b2ac6c143..f158e8007e7b405f130f63e0a84e8b746943065d 100644
--- a/test/workers/repository/updates/__snapshots__/branchify.spec.js.snap
+++ b/test/workers/repository/updates/__snapshots__/branchify.spec.js.snap
@@ -541,7 +541,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -1102,7 +1102,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -1669,7 +1669,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -2224,7 +2224,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,
@@ -2774,7 +2774,7 @@ Please make sure the following warnings are safe to ignore:
 
 This PR has been generated by [Renovate Bot](https://renovateapp.com).",
   "prCreation": "immediate",
-  "prNotPendingHours": 12,
+  "prNotPendingHours": 24,
   "prTitle": "{{#if isPin}}Pin{{else}}{{#if isRollback}}Roll back{{else}}Update{{/if}}{{/if}} dependency {{depName}} to {{#if isRange}}{{newVersion}}{{else}}{{#if isMajor}}v{{newVersionMajor}}{{else}}v{{newVersion}}{{/if}}{{/if}}",
   "privateKey": null,
   "rebaseStalePrs": false,