diff --git a/srcpkgs/kdevelop/patches/use-std-c99.patch b/srcpkgs/kdevelop/patches/use-std-c99.patch
index da373e3ab2c..d766e446f69 100644
--- a/srcpkgs/kdevelop/patches/use-std-c99.patch
+++ b/srcpkgs/kdevelop/patches/use-std-c99.patch
@@ -4,13 +4,12 @@ Let's use C99 instead.
 
 --- CMakeLists.txt.ORIG
 +++ CMakeLists.txt
-@@ -21,6 +21,9 @@
- endif()
- 
+@@ -15,6 +15,8 @@
+ include(KDEInstallDirs)
+ include(KDECMakeSettings)
  include(KDECompilerSettings NO_POLICY_SCOPE) # needs to be first, as set policies influence following macros
 +string(REPLACE " -std=iso9899:1990" "" CMAKE_C_FLAGS " ${CMAKE_C_FLAGS} ")
 +set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
-+
+ 
  include(ECMOptionalAddSubdirectory)
  include(ECMInstallIcons)
- include(ECMAddAppIcon)
diff --git a/srcpkgs/kdevelop/template b/srcpkgs/kdevelop/template
index ad3c8d13c32..94900870527 100644
--- a/srcpkgs/kdevelop/template
+++ b/srcpkgs/kdevelop/template
@@ -1,7 +1,7 @@
 # Template file for 'kdevelop'
 pkgname=kdevelop
-version=5.4.1
-revision=2
+version=5.4.2
+revision=1
 build_style=cmake
 hostmakedepends="extra-cmake-modules qt5-qmake qt5-host-tools"
 makedepends="apr-util-devel clang grantlee5-devel kcmutils-devel kdevelop-pg-qt
@@ -15,7 +15,7 @@ maintainer="yopito <pierre.bourgin@free.fr>"
 license="GPL-2.0-or-later, LGPL-2.1-or-later"
 homepage="https://www.kdevelop.org/"
 distfiles="${KDE_SITE}/${pkgname}/${version}/src/${pkgname}-${version}.tar.xz"
-checksum=6849c289ab9f4ad227cc4f4a52bf14e0eacab89ebf81020b0238d5ae607d388a
+checksum=52e253da4892428ef3059568a93263bf7f9dec5ddeb17b0e5d258726492dc6c4
 nocross="subversion-devel is not available"
 
 kdevelop-devel_package() {