diff --git a/src/training/CMakeLists.txt b/src/training/CMakeLists.txt
index f75816a8..1f5fe497 100644
--- a/src/training/CMakeLists.txt
+++ b/src/training/CMakeLists.txt
@@ -56,7 +56,7 @@ endif()
 # experimental
 
 if (NOT CPPAN_BUILD AND NOT SW_BUILD)
-    find_package(ICU COMPONENTS uc i18n)
+    find_package(ICU 52.1 COMPONENTS uc i18n)
 endif()
 
 ########################################
@@ -280,7 +280,7 @@ endif()
 if (PKG_CONFIG_FOUND OR CPPAN_BUILD OR SW_BUILD)
 
 if (PKG_CONFIG_FOUND)
-pkg_check_modules(Pango REQUIRED pango)
+pkg_check_modules(Pango REQUIRED pango>=1.22.0)
 pkg_check_modules(Cairo REQUIRED cairo)
 pkg_check_modules(PangoFt2 REQUIRED pangoft2)
 pkg_check_modules(PangoCairo REQUIRED pangocairo)