diff --git a/python/conanfile.txt b/python/conanfile.txt
index e336310..1875676 100644
--- a/python/conanfile.txt
+++ b/python/conanfile.txt
@@ -1,5 +1,5 @@
 [requires]
-pybind11/2.2.4@conan/stable
+pybind11/2.4.3
 
 [generators]
 cmake