diff --git a/srcpkgs/ruby/patches/cpp_isinf_isnan.patch b/srcpkgs/ruby/patches/cpp_isinf_isnan.patch
deleted file mode 100644
index 533d45815a1..00000000000
--- a/srcpkgs/ruby/patches/cpp_isinf_isnan.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From 01839b509c1bb914337124ac3d1f644b05ef90d8 Mon Sep 17 00:00:00 2001
-From: "Urabe, Shyouhei" <shyouhei@ruby-lang.org>
-Date: Tue, 5 Jun 2018 10:26:06 +0900
-Subject: [PATCH] C++11 is so bad it introduces a nightmare.
-
-TL;DR see https://developers.redhat.com/blog/2016/02/29/why-cstdlib-is-more-complicated-than-you-might-think/
-
- - `isnan` is something relatively new.  We need to provide one for
-   those systems without it.  However:
- - X/Open defines `int isnan(double)`. Note the `int`.
- - C99 defines `isnan(x)` to be a macro.
- - C++11 nukes them all, undefines all the "masking macro"s, and
-   define its own `bool isnan(double)`.  Note the `bool`.
- - In C++, `int isnan(double)` and `bool isnan(double)` are
-   incompatible.
- - So the mess.
-
-Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org>
----
- include/ruby/missing.h | 6 ++++++
- 1 file changed, 6 insertions(+)
-
-diff --git a/include/ruby/missing.h b/include/ruby/missing.h
-index dc3fd502b5..8df917498e 100644
---- include/ruby/missing.h.orig
-+++ include/ruby/missing.h
-@@ -168,6 +168,8 @@ RUBY_EXTERN const union bytesequence4_or_float rb_nan;
- #    include <ieeefp.h>
- #    endif
- #  define isinf(x) (!finite(x) && !isnan(x))
-+#  elif __cplusplus >= 201103L
-+#    include <cmath> // it must include constexpr bool isinf(double);
- #  else
- RUBY_EXTERN int isinf(double);
- #  endif
-@@ -176,7 +178,11 @@ RUBY_EXTERN int isinf(double);
-
- #ifndef isnan
- # ifndef HAVE_ISNAN
-+#  if __cplusplus >= 201103L
-+#    include <cmath> // it must include constexpr bool isnan(double);
-+#  else
- RUBY_EXTERN int isnan(double);
-+#  endif
- # endif
- #endif
-
---
diff --git a/srcpkgs/ruby/template b/srcpkgs/ruby/template
index c11310f621a..e79b7a98708 100644
--- a/srcpkgs/ruby/template
+++ b/srcpkgs/ruby/template
@@ -2,8 +2,8 @@
 _ruby_abiver=2.5.0
 
 pkgname=ruby
-version=2.5.1
-revision=5
+version=2.5.3
+revision=1
 build_style=gnu-configure
 configure_args="--enable-shared --disable-rpath
  DOXYGEN=/usr/bin/doxygen DOT=/usr/bin/dot PKG_CONFIG=/usr/bin/pkg-config"
@@ -13,7 +13,7 @@ homepage="http://www.ruby-lang.org/en/"
 maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="Ruby, BSD-2-Clause"
 distfiles="https://cache.ruby-lang.org/pub/ruby/${version%.*}/${pkgname}-${version}.tar.bz2"
-checksum=0f5d20f012baca865381a055e73f22db814615fee3c68083182cb78a4b3b30cb
+checksum=228a787ba68a7b20ac6e1d5af3d176d36e8ed600eb754d6325da341c3088ed76
 
 hostmakedepends="pkg-config bison groff"
 makedepends="zlib-devel readline-devel libffi-devel libressl-devel