diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e7181057d07ac1cf67e69fb0c332fa60384af20..6e97429fbfd37f49281bfa339950cf6caddb1872 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,7 +30,7 @@ CHECK_MINIMAL_CXX_STANDARD(14 ENFORCE)
 # Project dependencies
 FINDPYTHON()
 
-ADD_PROJECT_DEPENDENCY(dynamic-graph REQUIRED)
+ADD_PROJECT_DEPENDENCY(dynamic-graph 4.4.0 REQUIRED)
 ADD_PROJECT_DEPENDENCY(eigenpy REQUIRED)
 SEARCH_FOR_BOOST_PYTHON(REQUIRED)
 IF(BUILD_TESTING)
@@ -48,6 +48,7 @@ SET(${PROJECT_NAME}_HEADERS
   include/${CUSTOM_HEADER_DIR}/api.hh
   include/${CUSTOM_HEADER_DIR}/convert-dg-to-py.hh
   include/${CUSTOM_HEADER_DIR}/dynamic-graph-py.hh
+  include/${CUSTOM_HEADER_DIR}/fwd.hh
   include/${CUSTOM_HEADER_DIR}/interpreter.hh
   include/${CUSTOM_HEADER_DIR}/module.hh
   include/${CUSTOM_HEADER_DIR}/python-compat.hh
diff --git a/include/dynamic-graph/python/fwd.hh b/include/dynamic-graph/python/fwd.hh
new file mode 100644
index 0000000000000000000000000000000000000000..137a7d623c251536568d38964be76915a52a7f70
--- /dev/null
+++ b/include/dynamic-graph/python/fwd.hh
@@ -0,0 +1,21 @@
+/*
+ * Copyright CNRS 2021
+ *
+ * Author: Florent Lamiraux
+ *
+ * This file is part of sot-core.
+ */
+
+#ifndef DYNAMIC_GRAPH_PYTHON_FWD_HH
+#define DYNAMIC_GRAPH_PYTHON_FWD_HH
+
+#include <dynamic-graph/fwd.hh>
+
+namespace dynamicgraph {
+namespace python {
+class Interpreter;
+typedef shared_ptr<Interpreter> InterpreterPtr_t;
+} // namespace python
+} // namespace dynamicgraph
+
+#endif // DYNAMIC_GRAPH_PYTHON_FWD_HH
diff --git a/include/dynamic-graph/python/interpreter.hh b/include/dynamic-graph/python/interpreter.hh
index 9c1a55efc3f0156b341396b540658621480ad46a..ff8a8cdc9ecd8e76f6ea6ac6aee487c3963e5812 100644
--- a/include/dynamic-graph/python/interpreter.hh
+++ b/include/dynamic-graph/python/interpreter.hh
@@ -6,6 +6,7 @@
 
 #undef _POSIX_C_SOURCE
 #undef _XOPEN_SOURCE
+#include <dynamic-graph/python/fwd.hh>
 #include "dynamic-graph/python/api.hh"
 #include "dynamic-graph/python/deprecated.hh"