diff --git a/CMakeLists.txt b/CMakeLists.txt
index 448aba06..288fcb9d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -160,7 +160,7 @@ ExternalProject_Add(testing-plugins
 
 ExternalProject_Add(spdlog
                     PREFIX "external"
-                    URL "https://github.com/gabime/spdlog/archive/v1.8.5.tar.gz"
+                    URL "https://github.com/gabime/spdlog/archive/v1.9.1.tar.gz"
                     CONFIGURE_COMMAND ""
                     BUILD_COMMAND ""
                     INSTALL_COMMAND "")