diff --git a/include/PgSQL_Monitor.hpp b/include/PgSQL_Monitor.hpp
index 2f0156a3d..77f03b214 100644
--- a/include/PgSQL_Monitor.hpp
+++ b/include/PgSQL_Monitor.hpp
@@ -50,10 +50,12 @@ struct PgSQL_Monitor {
 	uint64_t repl_lag_check_OK { 0 };
 	uint64_t ssl_connections_OK { 0 };
 	uint64_t non_ssl_connections_OK { 0 };
-	// DNS cache counters (independent of MySQL_Monitor's counters)
-	unsigned long long dns_cache_queried { 0 };
-	unsigned long long dns_cache_lookup_success { 0 };
-	unsigned long long dns_cache_record_updated { 0 };
+	// DNS cache counters (independent of MySQL_Monitor's counters).  Atomic
+	// because the resolver workers increment them while readers (stats,
+	// p_update_metrics) load them from other threads.
+	std::atomic<unsigned long long> dns_cache_queried { 0 };
+	std::atomic<unsigned long long> dns_cache_lookup_success { 0 };
+	std::atomic<unsigned long long> dns_cache_record_updated { 0 };
 	///////////////////////////////////////////////////////////////////////////
 
 	// PgSQL-side DNS cache, independent of MySQL_Monitor's cache.  Lifetime is
diff --git a/lib/MySQL_Monitor.cpp b/lib/MySQL_Monitor.cpp
index c1046b0e7..1ea507717 100644
--- a/lib/MySQL_Monitor.cpp
+++ b/lib/MySQL_Monitor.cpp
@@ -1204,9 +1204,9 @@ void MySQL_Monitor::p_update_metrics() {
 		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_read_only_check_err], GloMyMon->read_only_check_ERR);
 		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_replication_lag_check_ok], GloMyMon->replication_lag_check_OK);
 		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_replication_lag_check_err], GloMyMon->replication_lag_check_ERR);
-		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_dns_cache_queried], GloMyMon->dns_cache_queried);
-		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_dns_cache_lookup_success], GloMyMon->dns_cache_lookup_success);
-		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_dns_cache_record_updated], GloMyMon->dns_cache_record_updated);
+		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_dns_cache_queried], GloMyMon->dns_cache_queried.load());
+		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_dns_cache_lookup_success], GloMyMon->dns_cache_lookup_success.load());
+		p_update_counter(this->metrics.p_counter_array[p_mon_counter::mysql_monitor_dns_cache_record_updated], GloMyMon->dns_cache_record_updated.load());
 	}
 }
 
diff --git a/lib/MySQL_Thread.cpp b/lib/MySQL_Thread.cpp
index 1e4847663..dac2df051 100644
--- a/lib/MySQL_Thread.cpp
+++ b/lib/MySQL_Thread.cpp
@@ -5336,19 +5336,19 @@ SQLite3_result * MySQL_Threads_Handler::SQL3_GlobalStatus(bool _memory) {
 		}
 		{
 			pta[0] = (char*)"MySQL_Monitor_dns_cache_queried";
-			sprintf(buf, "%llu", GloMyMon->dns_cache_queried);
+			sprintf(buf, "%llu", GloMyMon->dns_cache_queried.load());
 			pta[1] = buf;
 			result->add_row(pta);
 		}
 		{
 			pta[0] = (char*)"MySQL_Monitor_dns_cache_lookup_success";
-			sprintf(buf, "%llu", GloMyMon->dns_cache_lookup_success);
+			sprintf(buf, "%llu", GloMyMon->dns_cache_lookup_success.load());
 			pta[1] = buf;
 			result->add_row(pta);
 		}
 		{
 			pta[0] = (char*)"MySQL_Monitor_dns_cache_record_updated";
-			sprintf(buf, "%llu", GloMyMon->dns_cache_record_updated);
+			sprintf(buf, "%llu", GloMyMon->dns_cache_record_updated.load());
 			pta[1] = buf;
 			result->add_row(pta);
 		}
diff --git a/lib/PgSQL_Thread.cpp b/lib/PgSQL_Thread.cpp
index 963c88740..51a373015 100644
--- a/lib/PgSQL_Thread.cpp
+++ b/lib/PgSQL_Thread.cpp
@@ -4760,19 +4760,19 @@ SQLite3_result* PgSQL_Threads_Handler::SQL3_GlobalStatus(bool _memory) {
 		}
 		{
 			pta[0] = (char*)"PgSQL_Monitor_dns_cache_queried";
-			sprintf(buf, "%llu", GloPgMon->dns_cache_queried);
+			sprintf(buf, "%llu", GloPgMon->dns_cache_queried.load());
 			pta[1] = buf;
 			result->add_row(pta);
 		}
 		{
 			pta[0] = (char*)"PgSQL_Monitor_dns_cache_lookup_success";
-			sprintf(buf, "%llu", GloPgMon->dns_cache_lookup_success);
+			sprintf(buf, "%llu", GloPgMon->dns_cache_lookup_success.load());
 			pta[1] = buf;
 			result->add_row(pta);
 		}
 		{
 			pta[0] = (char*)"PgSQL_Monitor_dns_cache_record_updated";
-			sprintf(buf, "%llu", GloPgMon->dns_cache_record_updated);
+			sprintf(buf, "%llu", GloPgMon->dns_cache_record_updated.load());
 			pta[1] = buf;
 			result->add_row(pta);
 		}