diff --git a/contrib/dblink/Makefile b/contrib/dblink/Makefile
index b8d515716d..5189758dab 100644
--- a/contrib/dblink/Makefile
+++ b/contrib/dblink/Makefile
@@ -6,7 +6,8 @@ PG_CPPFLAGS = -I$(libpq_srcdir)
 SHLIB_LINK = $(libpq)
 
 EXTENSION = dblink
-DATA = dblink--1.1.sql dblink--1.0--1.1.sql dblink--unpackaged--1.0.sql
+DATA = dblink--1.2.sql dblink--1.1--1.2.sql dblink--1.0--1.1.sql \
+	dblink--unpackaged--1.0.sql
 PGFILEDESC = "dblink - connect to other PostgreSQL databases"
 
 REGRESS = paths dblink
diff --git a/contrib/dblink/dblink--1.1--1.2.sql b/contrib/dblink/dblink--1.1--1.2.sql
new file mode 100644
index 0000000000..ecbc49ef94
--- /dev/null
+++ b/contrib/dblink/dblink--1.1--1.2.sql
@@ -0,0 +1,46 @@
+/* contrib/dblink/dblink--1.1--1.2.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION dblink UPDATE TO '1.2'" to load this file. \quit
+
+ALTER FUNCTION dblink_connect(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_connect(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_connect_u(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_connect_u(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_disconnect() PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_disconnect(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_open(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_open(text, text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_open(text, text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_open(text, text, text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_fetch(text, int) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_fetch(text, int, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_fetch(text, text, int) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_fetch(text, text, int, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_close(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_close(text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_close(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_close(text, text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink(text, text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink(text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_exec(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_exec(text, text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_exec(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_exec(text, boolean) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_get_pkey(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_build_sql_insert(text, int2vector, int, _text, _text) PARALLEL SAFE;
+ALTER FUNCTION dblink_build_sql_delete(text, int2vector, int, _text) PARALLEL SAFE;
+ALTER FUNCTION dblink_build_sql_update(text, int2vector, int, _text, _text) PARALLEL SAFE;
+ALTER FUNCTION dblink_current_query() PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_send_query(text, text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_is_busy(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_get_result(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_get_result(text, bool) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_get_connections() PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_cancel_query(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_error_message(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_get_notify() PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_get_notify(text) PARALLEL RESTRICTED;
+ALTER FUNCTION dblink_fdw_validator(text[], oid) PARALLEL SAFE;
diff --git a/contrib/dblink/dblink--1.1.sql b/contrib/dblink/dblink--1.2.sql
similarity index 75%
rename from contrib/dblink/dblink--1.1.sql
rename to contrib/dblink/dblink--1.2.sql
index 873355382c..248943b0d2 100644
--- a/contrib/dblink/dblink--1.1.sql
+++ b/contrib/dblink/dblink--1.2.sql
@@ -1,4 +1,4 @@
-/* contrib/dblink/dblink--1.1.sql */
+/* contrib/dblink/dblink--1.2.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
 \echo Use "CREATE EXTENSION dblink" to load this file. \quit
@@ -8,12 +8,12 @@
 CREATE FUNCTION dblink_connect (text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_connect'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_connect (text, text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_connect'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 -- dblink_connect_u allows non-superusers to use
 -- non-password authenticated connections, but initially
@@ -21,12 +21,12 @@ LANGUAGE C STRICT;
 CREATE FUNCTION dblink_connect_u (text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_connect'
-LANGUAGE C STRICT SECURITY DEFINER;
+LANGUAGE C STRICT PARALLEL RESTRICTED SECURITY DEFINER;
 
 CREATE FUNCTION dblink_connect_u (text, text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_connect'
-LANGUAGE C STRICT SECURITY DEFINER;
+LANGUAGE C STRICT PARALLEL RESTRICTED SECURITY DEFINER;
 
 REVOKE ALL ON FUNCTION dblink_connect_u (text) FROM public;
 REVOKE ALL ON FUNCTION dblink_connect_u (text, text) FROM public;
@@ -34,174 +34,174 @@ REVOKE ALL ON FUNCTION dblink_connect_u (text, text) FROM public;
 CREATE FUNCTION dblink_disconnect ()
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_disconnect'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_disconnect (text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_disconnect'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_open (text, text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_open'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_open (text, text, boolean)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_open'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_open (text, text, text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_open'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_open (text, text, text, boolean)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_open'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_fetch (text, int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_fetch'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_fetch (text, int, boolean)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_fetch'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_fetch (text, text, int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_fetch'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_fetch (text, text, int, boolean)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_fetch'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_close (text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_close'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_close (text, boolean)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_close'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_close (text, text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_close'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_close (text, text, boolean)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_close'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink (text, text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_record'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink (text, text, boolean)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_record'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink (text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_record'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink (text, boolean)
 RETURNS setof record
 AS 'MODULE_PATHNAME','dblink_record'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_exec (text, text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_exec'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_exec (text, text, boolean)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_exec'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_exec (text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_exec'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_exec (text,boolean)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_exec'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE TYPE dblink_pkey_results AS (position int, colname text);
 
 CREATE FUNCTION dblink_get_pkey (text)
 RETURNS setof dblink_pkey_results
 AS 'MODULE_PATHNAME','dblink_get_pkey'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_build_sql_insert (text, int2vector, int, _text, _text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_build_sql_insert'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL SAFE;
 
 CREATE FUNCTION dblink_build_sql_delete (text, int2vector, int, _text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_build_sql_delete'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL SAFE;
 
 CREATE FUNCTION dblink_build_sql_update (text, int2vector, int, _text, _text)
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_build_sql_update'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL SAFE;
 
 CREATE FUNCTION dblink_current_query ()
 RETURNS text
 AS 'MODULE_PATHNAME','dblink_current_query'
-LANGUAGE C;
+LANGUAGE C PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_send_query(text, text)
 RETURNS int4
 AS 'MODULE_PATHNAME', 'dblink_send_query'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_is_busy(text)
 RETURNS int4
 AS 'MODULE_PATHNAME', 'dblink_is_busy'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_get_result(text)
 RETURNS SETOF record
 AS 'MODULE_PATHNAME', 'dblink_get_result'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_get_result(text, bool)
 RETURNS SETOF record
 AS 'MODULE_PATHNAME', 'dblink_get_result'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_get_connections()
 RETURNS text[]
 AS 'MODULE_PATHNAME', 'dblink_get_connections'
-LANGUAGE C;
+LANGUAGE C PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_cancel_query(text)
 RETURNS text
 AS 'MODULE_PATHNAME', 'dblink_cancel_query'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_error_message(text)
 RETURNS text
 AS 'MODULE_PATHNAME', 'dblink_error_message'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_get_notify(
     OUT notify_name TEXT,
@@ -210,7 +210,7 @@ CREATE FUNCTION dblink_get_notify(
 )
 RETURNS setof record
 AS 'MODULE_PATHNAME', 'dblink_get_notify'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 CREATE FUNCTION dblink_get_notify(
     conname TEXT,
@@ -220,7 +220,7 @@ CREATE FUNCTION dblink_get_notify(
 )
 RETURNS setof record
 AS 'MODULE_PATHNAME', 'dblink_get_notify'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL RESTRICTED;
 
 /* New stuff in 1.1 begins here */
 
@@ -230,6 +230,6 @@ CREATE FUNCTION dblink_fdw_validator(
 )
 RETURNS void
 AS 'MODULE_PATHNAME', 'dblink_fdw_validator'
-LANGUAGE C STRICT;
+LANGUAGE C STRICT PARALLEL SAFE;
 
 CREATE FOREIGN DATA WRAPPER dblink_fdw VALIDATOR dblink_fdw_validator;
diff --git a/contrib/dblink/dblink.control b/contrib/dblink/dblink.control
index 39f439affc..bdd17d28a4 100644
--- a/contrib/dblink/dblink.control
+++ b/contrib/dblink/dblink.control
@@ -1,5 +1,5 @@
 # dblink extension
 comment = 'connect to other PostgreSQL databases from within a database'
-default_version = '1.1'
+default_version = '1.2'
 module_pathname = '$libdir/dblink'
 relocatable = true