diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ab933c..34f4a62 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,11 +21,12 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 include(cmake/debug_flags.cmake)
 
+# All dependencies except test dependencies.
 find_package(Boost 1.65.0 REQUIRED COMPONENTS program_options locale)
 find_package(Gettext REQUIRED)
 find_package(Filesystem REQUIRED COMPONENTS Final Experimental)
-find_package(LibArchive REQUIRED)
-find_package(fmt REQUIRED CONFIG)
+find_package(LibArchive 3.2 REQUIRED)
+find_package(fmt 4 REQUIRED CONFIG)
 
 add_subdirectory(src)