diff --git a/lib/datasource/index.ts b/lib/datasource/index.ts
index 1ef183c4e8eec3..92a5d9ac6df134 100644
--- a/lib/datasource/index.ts
+++ b/lib/datasource/index.ts
@@ -2,7 +2,7 @@ import is from '@sindresorhus/is';
 import _ from 'lodash';
 import { logger } from '../logger';
 import { ExternalHostError } from '../types/errors/external-host-error';
-import * as runCache from '../util/cache/run';
+import * as memCache from '../util/cache/memory';
 import { clone } from '../util/clone';
 import * as allVersioning from '../versioning';
 import datasources from './api.generated';
@@ -190,13 +190,13 @@ function getRawReleases(
     config.lookupName +
     config.registryUrls;
   // By returning a Promise and reusing it, we should only fetch each package at most once
-  const cachedResult = runCache.get(cacheKey);
+  const cachedResult = memCache.get(cacheKey);
   // istanbul ignore if
   if (cachedResult) {
     return cachedResult;
   }
   const promisedRes = fetchReleases(config);
-  runCache.set(cacheKey, promisedRes);
+  memCache.set(cacheKey, promisedRes);
   return promisedRes;
 }
 
diff --git a/lib/datasource/packagist/index.ts b/lib/datasource/packagist/index.ts
index e75d2602f7a66f..78b8d175dbe5c4 100644
--- a/lib/datasource/packagist/index.ts
+++ b/lib/datasource/packagist/index.ts
@@ -3,8 +3,8 @@ import URL from 'url';
 import pAll from 'p-all';
 import { logger } from '../../logger';
 import { ExternalHostError } from '../../types/errors/external-host-error';
+import * as memCache from '../../util/cache/memory';
 import * as packageCache from '../../util/cache/package';
-import * as runCache from '../../util/cache/run';
 import * as hostRules from '../../util/host-rules';
 import { Http, HttpOptions } from '../../util/http';
 import { GetReleasesConfig, ReleaseResult } from '../common';
@@ -221,13 +221,13 @@ async function getAllPackages(regUrl: string): Promise<AllPackages | null> {
 
 function getAllCachedPackages(regUrl: string): Promise<AllPackages | null> {
   const cacheKey = `packagist-${regUrl}`;
-  const cachedResult = runCache.get(cacheKey);
+  const cachedResult = memCache.get(cacheKey);
   // istanbul ignore if
   if (cachedResult) {
     return cachedResult;
   }
   const promisedRes = getAllPackages(regUrl);
-  runCache.set(cacheKey, promisedRes);
+  memCache.set(cacheKey, promisedRes);
   return promisedRes;
 }
 
diff --git a/lib/manager/bundler/artifacts.ts b/lib/manager/bundler/artifacts.ts
index def4469669ace9..661c7f119514b0 100644
--- a/lib/manager/bundler/artifacts.ts
+++ b/lib/manager/bundler/artifacts.ts
@@ -3,7 +3,7 @@ import { BUNDLER_INVALID_CREDENTIALS } from '../../constants/error-messages';
 import { logger } from '../../logger';
 import { platform } from '../../platform';
 import { HostRule } from '../../types';
-import { get, set } from '../../util/cache/run';
+import * as memCache from '../../util/cache/memory';
 import { ExecOptions, exec } from '../../util/exec';
 import {
   deleteLocalFile,
@@ -74,7 +74,7 @@ export async function updateArtifacts(
   } = updateArtifact;
   const { compatibility = {} } = config;
   logger.debug(`bundler.updateArtifacts(${packageFileName})`);
-  const existingError = get<string>('bundlerArtifactsError');
+  const existingError = memCache.get<string>('bundlerArtifactsError');
   // istanbul ignore if
   if (existingError) {
     logger.debug('Aborting Bundler artifacts due to previous failed attempt');
@@ -182,7 +182,7 @@ export async function updateArtifacts(
         'Gemfile.lock update failed due to missing credentials - skipping branch'
       );
       // Do not generate these PRs because we don't yet support Bundler authentication
-      set('bundlerArtifactsError', BUNDLER_INVALID_CREDENTIALS);
+      memCache.set('bundlerArtifactsError', BUNDLER_INVALID_CREDENTIALS);
       throw new Error(BUNDLER_INVALID_CREDENTIALS);
     }
     const resolveMatchRe = new RegExp('\\s+(.*) was resolved to', 'g');
diff --git a/lib/util/cache/memory/index.spec.ts b/lib/util/cache/memory/index.spec.ts
new file mode 100644
index 00000000000000..9272efecddabc8
--- /dev/null
+++ b/lib/util/cache/memory/index.spec.ts
@@ -0,0 +1,18 @@
+import * as memCache from '.';
+
+describe('getRepoCache', () => {
+  it('returns undefined if not init', () => {
+    expect(memCache.get('key1')).toBeUndefined();
+  });
+  it('sets and gets repo cache', () => {
+    memCache.init();
+    memCache.set('key2', 'value');
+    expect(memCache.get('key2')).toEqual('value');
+  });
+  it('resets', () => {
+    memCache.init();
+    memCache.set('key3', 'value');
+    memCache.reset();
+    expect(memCache.get('key3')).toBeUndefined();
+  });
+});
diff --git a/lib/util/cache/run.ts b/lib/util/cache/memory/index.ts
similarity index 100%
rename from lib/util/cache/run.ts
rename to lib/util/cache/memory/index.ts
diff --git a/lib/util/cache/package/index.ts b/lib/util/cache/package/index.ts
index d77fdcd8be412e..6962b73c6ad2b1 100644
--- a/lib/util/cache/package/index.ts
+++ b/lib/util/cache/package/index.ts
@@ -1,5 +1,5 @@
 import { RenovateConfig } from '../../../config/common';
-import * as runCache from '../run';
+import * as memCache from '../memory';
 import { PackageCache } from './common';
 import * as fileCache from './file';
 import * as redisCache from './redis';
@@ -15,10 +15,10 @@ export function get<T = any>(namespace: string, key: string): Promise<T> {
     return undefined;
   }
   const globalKey = getGlobalKey(namespace, key);
-  if (!runCache.get(globalKey)) {
-    runCache.set(globalKey, cacheProxy.get(namespace, key));
+  if (!memCache.get(globalKey)) {
+    memCache.set(globalKey, cacheProxy.get(namespace, key));
   }
-  return runCache.get(globalKey);
+  return memCache.get(globalKey);
 }
 
 export function set(
@@ -31,7 +31,7 @@ export function set(
     return undefined;
   }
   const globalKey = getGlobalKey(namespace, key);
-  runCache.set(globalKey, value);
+  memCache.set(globalKey, value);
   return cacheProxy.set(namespace, key, value, minutes);
 }
 
diff --git a/lib/util/cache/run.spec.ts b/lib/util/cache/run.spec.ts
deleted file mode 100644
index df1cba40ebb693..00000000000000
--- a/lib/util/cache/run.spec.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import * as runCache from './run';
-
-describe('getRepoCache', () => {
-  it('returns undefined if not init', () => {
-    expect(runCache.get('key1')).toBeUndefined();
-  });
-  it('sets and gets repo cache', () => {
-    runCache.init();
-    runCache.set('key2', 'value');
-    expect(runCache.get('key2')).toEqual('value');
-  });
-  it('resets', () => {
-    runCache.init();
-    runCache.set('key3', 'value');
-    runCache.reset();
-    expect(runCache.get('key3')).toBeUndefined();
-  });
-});
diff --git a/lib/util/http/index.ts b/lib/util/http/index.ts
index 43da6e0cb8b371..c140432f724c77 100644
--- a/lib/util/http/index.ts
+++ b/lib/util/http/index.ts
@@ -2,7 +2,7 @@ import crypto from 'crypto';
 import URL from 'url';
 import got from 'got';
 import { ExternalHostError } from '../../types/errors/external-host-error';
-import * as runCache from '../cache/run';
+import * as memCache from '../cache/memory';
 import { clone } from '../clone';
 import { applyAuthorization } from './auth';
 import { applyHostRules } from './host-rules';
@@ -115,7 +115,7 @@ export class Http<GetOptions = HttpOptions, PostOptions = HttpPostOptions> {
       .digest('hex');
     if (options.method === 'get' && options.useCache !== false) {
       // return from cache if present
-      const cachedRes = runCache.get(cacheKey);
+      const cachedRes = memCache.get(cacheKey);
       // istanbul ignore if
       if (cachedRes) {
         return resolveResponse<T>(cachedRes, options);
@@ -124,16 +124,16 @@ export class Http<GetOptions = HttpOptions, PostOptions = HttpPostOptions> {
     const startTime = Date.now();
     const promisedRes = got(url, options);
     if (options.method === 'get') {
-      runCache.set(cacheKey, promisedRes); // always set if it's a get
+      memCache.set(cacheKey, promisedRes); // always set if it's a get
     }
     const res = await resolveResponse<T>(promisedRes, options);
-    const httpRequests = runCache.get('http-requests') || [];
+    const httpRequests = memCache.get('http-requests') || [];
     httpRequests.push({
       method: options.method,
       url,
       duration: Date.now() - startTime,
     });
-    runCache.set('http-requests', httpRequests);
+    memCache.set('http-requests', httpRequests);
     return res;
   }
 
diff --git a/lib/workers/pr/changelog/release-notes.ts b/lib/workers/pr/changelog/release-notes.ts
index 6947671a84132a..6fcb94c6cb3a98 100644
--- a/lib/workers/pr/changelog/release-notes.ts
+++ b/lib/workers/pr/changelog/release-notes.ts
@@ -4,8 +4,8 @@ import { linkify } from 'linkify-markdown';
 import MarkdownIt from 'markdown-it';
 
 import { logger } from '../../../logger';
+import * as memCache from '../../../util/cache/memory';
 import * as packageCache from '../../../util/cache/package';
-import * as runCache from '../../../util/cache/run';
 import { GithubHttp } from '../../../util/http/github';
 import { GitlabHttp } from '../../../util/http/gitlab';
 import { ChangeLogNotes, ChangeLogResult } from './common';
@@ -83,13 +83,13 @@ export function getCachedReleaseList(
   repository: string
 ): Promise<ChangeLogNotes[]> {
   const cacheKey = `getReleaseList-${apiBaseUrl}-${repository}`;
-  const cachedResult = runCache.get(cacheKey);
+  const cachedResult = memCache.get(cacheKey);
   // istanbul ignore if
   if (cachedResult) {
     return cachedResult;
   }
   const promisedRes = getReleaseList(apiBaseUrl, repository);
-  runCache.set(cacheKey, promisedRes);
+  memCache.set(cacheKey, promisedRes);
   return promisedRes;
 }
 
@@ -254,13 +254,13 @@ export async function getReleaseNotesMdFile(
   apiBaseUrl: string
 ): Promise<{ changelogFile: string; changelogMd: string }> | null {
   const cacheKey = `getReleaseNotesMdFile-${repository}-${apiBaseUrl}`;
-  const cachedResult = runCache.get(cacheKey);
+  const cachedResult = memCache.get(cacheKey);
   // istanbul ignore if
   if (cachedResult !== undefined) {
     return cachedResult;
   }
   const promisedRes = getReleaseNotesMdFileInner(repository, apiBaseUrl);
-  runCache.set(cacheKey, promisedRes);
+  memCache.set(cacheKey, promisedRes);
   return promisedRes;
 }
 
diff --git a/lib/workers/pr/changelog/source-github.ts b/lib/workers/pr/changelog/source-github.ts
index 7965b583aee929..2a36a600ecf690 100644
--- a/lib/workers/pr/changelog/source-github.ts
+++ b/lib/workers/pr/changelog/source-github.ts
@@ -2,8 +2,8 @@ import URL from 'url';
 import { PLATFORM_TYPE_GITHUB } from '../../../constants/platforms';
 import { Release } from '../../../datasource';
 import { logger } from '../../../logger';
+import * as memCache from '../../../util/cache/memory';
 import * as packageCache from '../../../util/cache/package';
-import * as runCache from '../../../util/cache/run';
 import * as hostRules from '../../../util/host-rules';
 import { GithubHttp } from '../../../util/http/github';
 import * as allVersioning from '../../../versioning';
@@ -47,13 +47,13 @@ async function getTags(
   repository: string
 ): Promise<string[]> {
   const cacheKey = `getTags-${endpoint}-${repository}`;
-  const cachedResult = runCache.get(cacheKey);
+  const cachedResult = memCache.get(cacheKey);
   // istanbul ignore if
   if (cachedResult !== undefined) {
     return cachedResult;
   }
   const promisedRes = getTagsInner(endpoint, repository);
-  runCache.set(cacheKey, promisedRes);
+  memCache.set(cacheKey, promisedRes);
   return promisedRes;
 }
 
diff --git a/lib/workers/pr/changelog/source-gitlab.ts b/lib/workers/pr/changelog/source-gitlab.ts
index 72540f21542550..e2f23a431c718f 100644
--- a/lib/workers/pr/changelog/source-gitlab.ts
+++ b/lib/workers/pr/changelog/source-gitlab.ts
@@ -1,8 +1,8 @@
 import URL from 'url';
 import { Release } from '../../../datasource';
 import { logger } from '../../../logger';
+import * as memCache from '../../../util/cache/memory';
 import * as packageCache from '../../../util/cache/package';
-import * as runCache from '../../../util/cache/run';
 import { GitlabHttp } from '../../../util/http/gitlab';
 import { regEx } from '../../../util/regex';
 import * as allVersioning from '../../../versioning';
@@ -52,13 +52,13 @@ async function getTags(
   repository: string
 ): Promise<string[]> {
   const cacheKey = `getTags-${endpoint}-${versionScheme}-${repository}`;
-  const cachedResult = runCache.get(cacheKey);
+  const cachedResult = memCache.get(cacheKey);
   // istanbul ignore if
   if (cachedResult !== undefined) {
     return cachedResult;
   }
   const promisedRes = getTagsInner(endpoint, versionScheme, repository);
-  runCache.set(cacheKey, promisedRes);
+  memCache.set(cacheKey, promisedRes);
   return promisedRes;
 }
 
diff --git a/lib/workers/repository/init/index.ts b/lib/workers/repository/init/index.ts
index 5b3688c960e300..f0c901d5055789 100644
--- a/lib/workers/repository/init/index.ts
+++ b/lib/workers/repository/init/index.ts
@@ -1,7 +1,7 @@
 import { RenovateConfig } from '../../../config';
 import { logger } from '../../../logger';
 import { platform } from '../../../platform';
-import * as runCache from '../../../util/cache/run';
+import * as memCache from '../../../util/cache/memory';
 import { checkIfConfigured } from '../configured';
 import { checkOnboardingBranch } from '../onboarding/branch';
 import { initApis } from './apis';
@@ -11,7 +11,7 @@ import { detectSemanticCommits } from './semantic';
 import { detectVulnerabilityAlerts } from './vulnerability';
 
 export async function initRepo(input: RenovateConfig): Promise<RenovateConfig> {
-  runCache.init();
+  memCache.init();
   let config: RenovateConfig = {
     ...input,
     errors: [],
diff --git a/lib/workers/repository/stats.spec.ts b/lib/workers/repository/stats.spec.ts
index a391efba56c2ae..a62796aa981944 100644
--- a/lib/workers/repository/stats.spec.ts
+++ b/lib/workers/repository/stats.spec.ts
@@ -1,14 +1,14 @@
-import * as runCache_ from '../../util/cache/run';
+import * as memCache_ from '../../util/cache/memory';
 import { printRequestStats } from './stats';
 
-jest.mock('../../util/cache/run');
+jest.mock('../../util/cache/memory');
 
-const runCache: any = runCache_ as any;
+const memCache: any = memCache_ as any;
 
 describe('workers/repository/stats', () => {
   describe('printRequestStats()', () => {
     it('runs', () => {
-      runCache.get = jest.fn(() => [
+      memCache.get = jest.fn(() => [
         {
           method: 'get',
           url: 'https://api.github.com/api/v3/user',
diff --git a/lib/workers/repository/stats.ts b/lib/workers/repository/stats.ts
index 167a8b659df7b3..2cf727b4314042 100644
--- a/lib/workers/repository/stats.ts
+++ b/lib/workers/repository/stats.ts
@@ -1,9 +1,9 @@
 import URL from 'url';
 import { logger } from '../../logger';
-import * as runCache from '../../util/cache/run';
+import * as memCache from '../../util/cache/memory';
 
 export function printRequestStats(): void {
-  const httpRequests = runCache.get('http-requests');
+  const httpRequests = memCache.get('http-requests');
   if (!httpRequests) {
     return;
   }