diff --git a/CMakeLists.txt b/CMakeLists.txt
index a9dd559c4..e3e9d46ab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@ project(Plasma)
 
 # ECM setup
 include(FeatureSummary)
-find_package(ECM 5.14.0  NO_MODULE)
+find_package(ECM 5.15.0  NO_MODULE)
 set_package_properties(ECM PROPERTIES TYPE REQUIRED DESCRIPTION "Extra CMake Modules." URL "https://projects.kde.org/projects/kdesupport/extra-cmake-modules")
 feature_summary(WHAT REQUIRED_PACKAGES_NOT_FOUND FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
@@ -21,7 +21,7 @@ include(ECMSetupVersion)
 include(KDEFrameworkCompilerSettings)
 
 set(KF5_VERSION "5.15.0") # handled by release scripts
-set(KF5_DEP_VERSION "5.14.0") # handled by release scripts
+set(KF5_DEP_VERSION "5.15.0") # handled by release scripts
 
 ecm_setup_version(${KF5_VERSION}
                   VARIABLE_PREFIX PLASMA