diff --git a/lib/channel_model_impl.h b/lib/channel_model_impl.h
index 7809560..e6d789f 100644
--- a/lib/channel_model_impl.h
+++ b/lib/channel_model_impl.h
@@ -20,12 +20,12 @@
 #include <foo/channel_model.h>
 
 #include <gnuradio/top_block.h>
-#include <gnuradio/blocks/add_cc.h>
-#include <gnuradio/blocks/multiply_cc.h>
-#include <gnuradio/analog/sig_source_c.h>
-#include <gnuradio/analog/noise_source_c.h>
+#include <gnuradio/blocks/add_blk.h>
+#include <gnuradio/blocks/multiply.h>
+#include <gnuradio/analog/sig_source.h>
+#include <gnuradio/analog/noise_source.h>
 #include <gnuradio/filter/mmse_resampler_cc.h>
-#include <gnuradio/filter/fir_filter_ccc.h>
+#include <gnuradio/filter/fir_filter_blk.h>
 
 namespace gr {
 namespace foo {