diff --git a/lib/manager/types.ts b/lib/manager/types.ts
index d28e977414d21a..b845b030f1793f 100644
--- a/lib/manager/types.ts
+++ b/lib/manager/types.ts
@@ -144,7 +144,6 @@ export interface LookupUpdate {
   isRange?: boolean;
   isRollback?: boolean;
   newDigest?: string;
-  newDigestShort?: string;
   newMajor?: number;
   newMinor?: number;
   newValue: string;
diff --git a/lib/workers/repository/process/lookup/__snapshots__/index.spec.ts.snap b/lib/workers/repository/process/lookup/__snapshots__/index.spec.ts.snap
index 1c87048435d640..f4483d0cffd151 100644
--- a/lib/workers/repository/process/lookup/__snapshots__/index.spec.ts.snap
+++ b/lib/workers/repository/process/lookup/__snapshots__/index.spec.ts.snap
@@ -147,7 +147,6 @@ Object {
       "blockedByPin": true,
       "bucket": "non-major",
       "newDigest": "sha256:abcdef1234567890",
-      "newDigestShort": "abcdef1",
       "newMajor": 8,
       "newMinor": 1,
       "newValue": "8.1.0",
@@ -156,7 +155,6 @@ Object {
     },
     Object {
       "newDigest": "sha256:0123456789abcdef",
-      "newDigestShort": "0123456",
       "newValue": "8.0.0",
       "updateType": "pin",
     },
@@ -170,7 +168,6 @@ Object {
   "updates": Array [
     Object {
       "newDigest": "sha256:abcdef1234567890",
-      "newDigestShort": "abcdef1",
       "newValue": "alpine",
       "updateType": "pin",
     },
@@ -190,7 +187,6 @@ Object {
   "updates": Array [
     Object {
       "newDigest": "sha256:abcdef1234567890",
-      "newDigestShort": "abcdef1",
       "newValue": "8.1.0",
       "updateType": "pin",
     },
@@ -212,7 +208,6 @@ Object {
     Object {
       "bucket": "non-major",
       "newDigest": "sha256:abcdef1234567890",
-      "newDigestShort": "abcdef1",
       "newMajor": 8,
       "newMinor": 1,
       "newValue": "8.1.0",
@@ -221,7 +216,6 @@ Object {
     },
     Object {
       "newDigest": "sha256:0123456789abcdef",
-      "newDigestShort": "0123456",
       "newValue": "8.0.0",
       "updateType": "digest",
     },
@@ -235,7 +229,6 @@ Object {
   "updates": Array [
     Object {
       "newDigest": "sha256:abcdef1234567890",
-      "newDigestShort": "abcdef1",
       "newValue": "alpine",
       "updateType": "digest",
     },
@@ -250,7 +243,6 @@ Object {
   "updates": Array [
     Object {
       "newDigest": "4b825dc642cb6eb9a060e54bf8d69288fbee4904",
-      "newDigestShort": "4b825dc",
       "newValue": undefined,
       "newVersion": undefined,
       "updateType": "digest",
diff --git a/lib/workers/repository/process/lookup/index.ts b/lib/workers/repository/process/lookup/index.ts
index d513e9741f7a34..8c9e3a31912f4c 100644
--- a/lib/workers/repository/process/lookup/index.ts
+++ b/lib/workers/repository/process/lookup/index.ts
@@ -328,13 +328,6 @@ export async function lookupUpdates(
       if (pinDigests || currentDigest) {
         update.newDigest =
           update.newDigest || (await getDigest(config, update.newValue));
-        if (update.newDigest) {
-          update.newDigestShort = update.newDigest
-            .replace('sha256:', '')
-            .substring(0, 7);
-        } else {
-          logger.debug({ newValue: update.newValue }, 'Could not getDigest');
-        }
       }
     }
   }