diff --git a/query-node/CHANGELOG.md b/query-node/CHANGELOG.md
index 1847675515..b2dabdd5b2 100644
--- a/query-node/CHANGELOG.md
+++ b/query-node/CHANGELOG.md
@@ -1,6 +1,7 @@
 ### 2.4.0
 
 - Bump @joystream/types to Petra version
+- Don't crash QN processor on unknown proposal type
 
 ### 2.2.1
 
diff --git a/query-node/mappings/src/proposals.ts b/query-node/mappings/src/proposals.ts
index ab2bea18f4..1b50925a66 100644
--- a/query-node/mappings/src/proposals.ts
+++ b/query-node/mappings/src/proposals.ts
@@ -72,6 +72,7 @@ import {
   genericEventFields,
   getByIdOrFail,
   getWorkingGroupModuleName,
+  logger,
   toNumber,
   unimplementedError,
   unwrap,
@@ -366,7 +367,7 @@ async function parseProposalDetails(
     details.remoteChains = unwrap(bridgeConstraints.remoteChains)?.map((a) => a.toNumber())
     return details
   } else {
-    unimplementedError(`Unsupported proposal details type: ${proposalDetails.type}`)
+    logger.error(`Unsupported proposal details type: ${proposalDetails.type.toString()}`)
   }
 }