diff --git a/src/backend/distributed/utils/enable_ssl.c b/src/backend/distributed/utils/enable_ssl.c
index a6a8dc065..704670b9e 100644
--- a/src/backend/distributed/utils/enable_ssl.c
+++ b/src/backend/distributed/utils/enable_ssl.c
@@ -8,6 +8,19 @@
  *-------------------------------------------------------------------------
  */
 
+
+/*
+ * Make sure that functions marked as deprecated in OpenSSL 3.0 don't trigger
+ * deprecation warnings by indicating that we're using the OpenSSL 1.0.1
+ * compatibile API. Postgres does this by already in PG14, so we should not do
+ * it otherwise we get warnings about redefining this value.
+ */
+#if PG_VERSION_NUM < PG_VERSION_14
+#ifndef OPENSSL_API_COMPAT
+#define OPENSSL_API_COMPAT 0x1000100L
+#endif
+#endif
+
 #include "postgres.h"
 
 #include "distributed/connection_management.h"