diff --git a/config.js b/config.js
index c6ea774a3..02b40681d 100644
--- a/config.js
+++ b/config.js
@@ -78,6 +78,12 @@ const CONFIG = {
   // messages through the websocket to keep the socket alive.
   KEEP_ALIVE: process.env.TALK_KEEP_ALIVE || '30s',
 
+  //------------------------------------------------------------------------------
+  // Cache configuration
+  //------------------------------------------------------------------------------
+
+  CACHE_EXPIRY_COMMENT_COUNT: process.env.TALK_CACHE_EXPIRY_COMMENT_COUNT || '1hr',
+
   //------------------------------------------------------------------------------
   // Recaptcha configuration
   //------------------------------------------------------------------------------
diff --git a/docs/_docs/02-01-configuration.md b/docs/_docs/02-01-configuration.md
index fd2ee0478..d2e990375 100644
--- a/docs/_docs/02-01-configuration.md
+++ b/docs/_docs/02-01-configuration.md
@@ -128,6 +128,11 @@ The default could be read as:
 - At the moment of writing, beheviour is not attached to the flagging
   reliability, but it is recorded.
 
+### Cache
+
+- `TALK_CACHE_EXPIRY_COMMENT_COUNT` (_optional_) - configure the duration for which
+  comment counts are cached for. (Default `1hr`)
+
 ### Plugins
 
 Plugins configuration can be found on the [Plugins]({{ "/docs/running/plugins/" | absolute_url }}) page.
\ No newline at end of file
diff --git a/graph/loaders/comments.js b/graph/loaders/comments.js
index 16d2101f7..7a17cfabd 100644
--- a/graph/loaders/comments.js
+++ b/graph/loaders/comments.js
@@ -8,6 +8,10 @@ const {
   SEARCH_NON_NULL_OR_ACCEPTED_COMMENTS,
   SEARCH_OTHERS_COMMENTS
 } = require('../../perms/constants');
+const {
+  CACHE_EXPIRY_COMMENT_COUNT
+} = require('../../config');
+const ms = require('ms');
 
 const CommentModel = require('../../models/comment');
 const UsersService = require('../../services/users');
@@ -481,11 +485,11 @@ module.exports = (context) => ({
     get: new DataLoader((ids) => getComments(context, ids)),
     getByQuery: (query) => getCommentsByQuery(context, query),
     getCountByQuery: (query) => getCommentCountByQuery(context, query),
-    countByAssetID: new SharedCounterDataLoader('Comments.totalCommentCount', 3600, (ids) => getCountsByAssetID(context, ids)),
+    countByAssetID: new SharedCounterDataLoader('Comments.totalCommentCount', ms(CACHE_EXPIRY_COMMENT_COUNT), (ids) => getCountsByAssetID(context, ids)),
     countByAssetIDPersonalized: (query) => getCountsByAssetIDPersonalized(context, query),
-    parentCountByAssetID: new SharedCounterDataLoader('Comments.countByAssetID', 3600, (ids) => getParentCountsByAssetID(context, ids)),
+    parentCountByAssetID: new SharedCounterDataLoader('Comments.countByAssetID', ms(CACHE_EXPIRY_COMMENT_COUNT), (ids) => getParentCountsByAssetID(context, ids)),
     parentCountByAssetIDPersonalized: (query) => getParentCountByAssetIDPersonalized(context, query),
-    countByParentID: new SharedCounterDataLoader('Comments.countByParentID', 3600, (ids) => getCountsByParentID(context, ids)),
+    countByParentID: new SharedCounterDataLoader('Comments.countByParentID', ms(CACHE_EXPIRY_COMMENT_COUNT), (ids) => getCountsByParentID(context, ids)),
     countByParentIDPersonalized: (query) => getCountByParentIDPersonalized(context, query),
     genRecentReplies: new DataLoader((ids) => genRecentReplies(context, ids)),
     genRecentComments: new DataLoader((ids) => genRecentComments(context, ids))