diff --git a/dpf b/dpf
index 304054a..f333c7a 160000
--- a/dpf
+++ b/dpf
@@ -1 +1 @@
-Subproject commit 304054af33b20ddbcdf0e5c87871010e8fc191dc
+Subproject commit f333c7a90c664458d41828e8c2489e2e95ed5607
diff --git a/plugins/ProM/DistrhoPluginInfo.h b/plugins/ProM/DistrhoPluginInfo.h
index 5bf2552..57cda7f 100644
--- a/plugins/ProM/DistrhoPluginInfo.h
+++ b/plugins/ProM/DistrhoPluginInfo.h
@@ -30,6 +30,7 @@
 #define DISTRHO_PLUGIN_WANT_STATE    0
 #define DISTRHO_PLUGIN_WANT_TIMEPOS  0
 
+#define DISTRHO_PLUGIN_IS_RT_SAFE         0
 #define DISTRHO_PLUGIN_WANT_DIRECT_ACCESS 1
 
 #define DISTRHO_PLUGIN_URI "http://distrho.sf.net/plugins/ProM"