diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 759b479..3291010 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,7 @@ jobs:
         - { PGVER: 16 }
         - { PGVER: 17 }
         - { PGVER: 18 }
+        - { PGVER: 19 }
 
     steps:
 
diff --git a/http.c b/http.c
index 20805db..0689c2f 100644
--- a/http.c
+++ b/http.c
@@ -418,7 +418,7 @@ http_guc_init_opt(http_curlopt *opt)
 }
 
 static void
-http_guc_init()
+http_guc_init(void)
 {
 	http_curlopt *opt = settable_curlopts;
 	while (opt->curlopt)
@@ -972,7 +972,7 @@ set_curlopt(CURL* handle, const http_curlopt *opt)
 
 /* Check/create the global CURL* handle */
 static CURL *
-http_get_handle()
+http_get_handle(void)
 {
 	CURL *handle = g_http_handle;
 	http_curlopt *opt = settable_curlopts;