diff --git a/Makefile b/Makefile
index e0e1086..f4250d8 100644
--- a/Makefile
+++ b/Makefile
@@ -4,12 +4,12 @@
 
 ###############
 ## DSE C Library
-export DSE_CLIB_VERSION ?= 1.0.17
+export DSE_CLIB_VERSION ?= 1.0.18
 
 
 ###############
 ## DSE Model C Library
-export DSE_MODELC_VERSION ?= 2.0.23
+export DSE_MODELC_VERSION ?= 2.1.1
 
 
 ###############
diff --git a/dse/network/model.c b/dse/network/model.c
index 03d43e8..69bd976 100644
--- a/dse/network/model.c
+++ b/dse/network/model.c
@@ -69,7 +69,7 @@ ModelDesc* model_create(ModelDesc* model)
     const char* network_signal = NULL;
     for (uint32_t i = 0; i < m->sv_network->count; i++) {
         const char* name =
-            m->sv_network->annotation(m->sv_network, i, "network");
+            signal_annotation(m->sv_network, i, "network", NULL);
         if (name == NULL) continue;
         if (strcmp(name, m->network.name) == 0) {
             network_signal = m->sv_network->signal[i];
@@ -93,7 +93,7 @@ ModelDesc* model_create(ModelDesc* model)
         "  signal mimetype: %s", m->sv_network->mime_type[m->sv_network_index]);
 
     /* Locate the Network Codec. */
-    m->network_codec = m->sv_network->codec(m->sv_network, m->sv_network_index);
+    m->network_codec = signal_codec(m->sv_network, m->sv_network_index);
     if (m->network_codec == NULL) log_fatal("Unable to locate NCodec object!");
 
     /* Print the parsed network. */
@@ -174,7 +174,7 @@ int model_step(ModelDesc* model, double* model_time, double stop_time)
     network_function_apply_decode(&m->network);
     network_marshal_messages_to_signals(
         &m->network, m->network.marshal_list, false);
-    m->sv_network->release(m->sv_network, m->sv_network_index);
+    signal_release(m->sv_network, m->sv_network_index);
 
 
     /* The network tasks are organised on a 1 ms schedule and need to be
diff --git a/tests/cmocka/mstep/test_mstep.c b/tests/cmocka/mstep/test_mstep.c
index e884080..72f46cb 100644
--- a/tests/cmocka/mstep/test_mstep.c
+++ b/tests/cmocka/mstep/test_mstep.c
@@ -89,7 +89,7 @@ void test_mstep(void** state)
     assert_null(model->sv_network->binary[0]);
     assert_int_equal(model->sv_network->length[0], 0);
     assert_int_equal(model->sv_network->buffer_size[0], 0);
-    model->sv_network->reset(model->sv_network, 0);
+    signal_reset(model->sv_network, 0);
 
     /* Step the model - set signals and check for can_tx. */
     model->sv_signal->scalar[0] = 2;
@@ -115,7 +115,7 @@ void test_mstep(void** state)
     uint8_t C_buf[0x62];
     memcpy(C_buf, model->sv_network->binary[0], C_len);
     C_buf[53] = 0x42;
-    model->sv_network->reset(model->sv_network, 0);
+    signal_reset(model->sv_network, 0);
 
     /* Step the model - set can_rx and check for signals. */
     model->sv_signal->scalar[0] = 1;
@@ -126,10 +126,10 @@ void test_mstep(void** state)
     assert_double_equal(model->sv_signal->scalar[0], 1.0, 0.0);
     assert_double_equal(model->sv_signal->scalar[1], 0.0, 0.0);
     assert_double_equal(model->sv_signal->scalar[2], 265.0, 0.0);
-    model->sv_network->reset(model->sv_network, 0);
+    signal_reset(model->sv_network, 0);
 
     /* Step the model - inject previous CAN packet. */
-    model->sv_network->append(model->sv_network, 0, C_buf, C_len);
+    signal_append(model->sv_network, 0, C_buf, C_len);
     rc = modelc_step(model->mi, mock->step_size);
     assert_int_equal(rc, 0);
     assert_double_equal(model->sv_signal->scalar[0], 2.0, 0.0);
@@ -138,7 +138,7 @@ void test_mstep(void** state)
     assert_null(model->sv_network->binary[0]);
     assert_int_equal(model->sv_network->length[0], 0);
     assert_int_equal(model->sv_network->buffer_size[0], 0);
-    model->sv_network->reset(model->sv_network, 0);
+    signal_reset(model->sv_network, 0);
 }