diff --git a/conanfile.py b/conanfile.py
index a0582e42..f16b547d 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -51,7 +51,7 @@ class MPUnitsConan(ConanFile):
     url = "https://github.com/mpusz/units"
     settings = "os", "compiler", "build_type", "arch"
     requires = (
-        "gsl-lite/0.38.1"
+        "gsl-lite/0.40.0"
     )
     options = {
         "downcast_mode": ["off", "on", "auto"],