diff --git a/lib/manager/bundler/locked-version.ts b/lib/manager/bundler/locked-version.ts
index ca9e477284e28f661f09ecfb8d88b661ac4c8b37..c18ceb244d2209967bfd3ca2f6e71b62c04849dc 100644
--- a/lib/manager/bundler/locked-version.ts
+++ b/lib/manager/bundler/locked-version.ts
@@ -35,7 +35,7 @@ export function extractLockFileEntries(
       }
     });
   } catch (err) /* istanbul ignore next */ {
-    logger.error({ err }, `Failed to parse the lockfile`);
+    logger.warn({ err }, `Failed to parse Bundler lockfile`);
   }
   return gemLock;
 }
diff --git a/lib/manager/gradle/deep/gradle-updates-report.ts b/lib/manager/gradle/deep/gradle-updates-report.ts
index 59ec47b264532e8a15bc9348cabf9e212011859b..7f9bf15f44bc0b4b61cd2adbe56a97ce943fd49b 100644
--- a/lib/manager/gradle/deep/gradle-updates-report.ts
+++ b/lib/manager/gradle/deep/gradle-updates-report.ts
@@ -72,7 +72,7 @@ async function readGradleReport(localDir: string): Promise<GradleProject[]> {
   try {
     return JSON.parse(contents);
   } catch (err) {
-    logger.error({ err }, 'Invalid JSON');
+    logger.error({ err }, 'Invalid Gradle extract JSON');
     return [];
   }
 }
diff --git a/lib/manager/helm-values/extract.ts b/lib/manager/helm-values/extract.ts
index a57a2876a0a1360ecc94b2eab2596b784b61e3e7..bab0d8a02dd5e725629041265a550bb7874b6edf 100644
--- a/lib/manager/helm-values/extract.ts
+++ b/lib/manager/helm-values/extract.ts
@@ -75,7 +75,7 @@ export function extractPackageFile(content: string): PackageFile {
       return { deps };
     }
   } catch (err) /* istanbul ignore next */ {
-    logger.error({ err }, 'Error parsing helm-values parsed content');
+    logger.warn({ err }, 'Error parsing helm-values parsed content');
   }
   return null;
 }
diff --git a/lib/manager/pre-commit/extract.ts b/lib/manager/pre-commit/extract.ts
index 9e0dec1d7b5767be2c702fc52793e3afc2ca50d4..88ac76c6becfa3e851881ffedc5b00222a582b48 100644
--- a/lib/manager/pre-commit/extract.ts
+++ b/lib/manager/pre-commit/extract.ts
@@ -181,7 +181,7 @@ export function extractPackageFile(
       return { deps };
     }
   } catch (err) /* istanbul ignore next */ {
-    logger.error({ filename, err }, 'Error scanning parsed pre-commit config');
+    logger.warn({ filename, err }, 'Error scanning parsed pre-commit config');
   }
   return null;
 }
diff --git a/lib/util/http/github.ts b/lib/util/http/github.ts
index 4cbdcce682a9b922a7e095cdf450394ce4fb0ea1..972e56f0f418568f0cf054cf03a4255fc3a9ac1b 100644
--- a/lib/util/http/github.ts
+++ b/lib/util/http/github.ts
@@ -344,7 +344,7 @@ export class GithubHttp extends Http<GithubHttpOptions, GithubHttpOptions> {
       } else {
         count = Math.floor(count / 2);
         if (count === 0) {
-          logger.error({ query, options, res }, 'Error fetching GraphQL nodes');
+          logger.warn({ query, options, res }, 'Error fetching GraphQL nodes');
           isIterating = false;
         }
       }