diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 4f5ed36004..64d76cc0c9 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -27,7 +27,7 @@
 
 #define LIBAVFILTER_VERSION_MAJOR  2
 #define LIBAVFILTER_VERSION_MINOR 15
-#define LIBAVFILTER_VERSION_MICRO  0
+#define LIBAVFILTER_VERSION_MICRO  1
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index d19fc59f00..60d529ba73 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -229,7 +229,7 @@ int ff_avfilter_graph_config_formats(AVFilterGraph *graph, AVClass *log_ctx)
     return 0;
 }
 
-int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx)
+int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx)
 {
     int ret;
 
diff --git a/libavfilter/avfiltergraph.h b/libavfilter/avfiltergraph.h
index 8013b46f5b..23a7c5138f 100644
--- a/libavfilter/avfiltergraph.h
+++ b/libavfilter/avfiltergraph.h
@@ -76,7 +76,7 @@ int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt,
  * @param log_ctx context used for logging
  * @return 0 in case of success, a negative AVERROR code otherwise
  */
-int avfilter_graph_config(AVFilterGraph *graphctx, AVClass *log_ctx);
+int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx);
 
 /**
  * Free a graph, destroy its links, and set *graph to NULL.
@@ -118,6 +118,6 @@ typedef struct AVFilterInOut {
  */
 int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
                          AVFilterInOut *inputs, AVFilterInOut *outputs,
-                         AVClass *log_ctx);
+                         void *log_ctx);
 
 #endif /* AVFILTER_AVFILTERGRAPH_H */
diff --git a/libavfilter/graphparser.c b/libavfilter/graphparser.c
index 4f11529900..b7a2232270 100644
--- a/libavfilter/graphparser.c
+++ b/libavfilter/graphparser.c
@@ -329,7 +329,7 @@ static int parse_outputs(const char **buf, AVFilterInOut **curr_inputs,
 
 int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
                          AVFilterInOut *open_inputs,
-                         AVFilterInOut *open_outputs, AVClass *log_ctx)
+                         AVFilterInOut *open_outputs, void *log_ctx)
 {
     int index = 0, ret;
     char chr = 0;