diff --git a/tests/gpg/t-thread-keylist-verify.c b/tests/gpg/t-thread-keylist-verify.c
index 9f37857d..6f747a6f 100644
--- a/tests/gpg/t-thread-keylist-verify.c
+++ b/tests/gpg/t-thread-keylist-verify.c
@@ -32,7 +32,7 @@
 
 #include "t-support.h"
 
-#define THREAD_COUNT 500
+#define THREAD_COUNT 100
 
 static const char test_text1[] = "Just GNU it!\n";
 static const char test_sig1[] =
diff --git a/tests/gpg/t-thread-keylist.c b/tests/gpg/t-thread-keylist.c
index 6b9cee08..c03f1caf 100644
--- a/tests/gpg/t-thread-keylist.c
+++ b/tests/gpg/t-thread-keylist.c
@@ -32,7 +32,7 @@
 
 #include "t-support.h"
 
-#define THREAD_COUNT 500
+#define THREAD_COUNT 100
 
 void *
 start_keylist (void *arg)