diff --git a/Sources/XMTPiOS/Group.swift b/Sources/XMTPiOS/Group.swift
index e0af35d7..4ee5a601 100644
--- a/Sources/XMTPiOS/Group.swift
+++ b/Sources/XMTPiOS/Group.swift
@@ -186,11 +186,11 @@ public struct Group: Identifiable, Equatable, Hashable {
 		var options = FfiListMessagesOptions(sentBeforeNs: nil, sentAfterNs: nil, limit: nil)
 
 		if let before {
-			options.sentBeforeNs = Int64(before.millisecondsSinceEpoch)
+			options.sentBeforeNs = Int64(before.millisecondsSinceEpoch * 1_000_000)
 		}
 
 		if let after {
-			options.sentAfterNs = Int64(after.millisecondsSinceEpoch)
+			options.sentAfterNs = Int64(after.millisecondsSinceEpoch * 1_000_000)
 		}
 
 		if let limit {
@@ -213,11 +213,11 @@ public struct Group: Identifiable, Equatable, Hashable {
 		var options = FfiListMessagesOptions(sentBeforeNs: nil, sentAfterNs: nil, limit: nil)
 
 		if let before {
-			options.sentBeforeNs = Int64(before.millisecondsSinceEpoch)
+			options.sentBeforeNs = Int64(before.millisecondsSinceEpoch * 1_000_000)
 		}
 
 		if let after {
-			options.sentAfterNs = Int64(after.millisecondsSinceEpoch)
+			options.sentAfterNs = Int64(after.millisecondsSinceEpoch * 1_000_000)
 		}
 
 		if let limit {
diff --git a/XMTP.podspec b/XMTP.podspec
index 2ef64b0b..415352db 100644
--- a/XMTP.podspec
+++ b/XMTP.podspec
@@ -16,7 +16,7 @@ Pod::Spec.new do |spec|
   #
 
   spec.name         = "XMTP"
-  spec.version      = "0.8.11"
+  spec.version      = "0.8.12"
   spec.summary      = "XMTP SDK Cocoapod"
 
   # This description is used to generate tags and improve search results.