diff --git a/lalsimulation-4.0.0.tar.xz b/lalsimulation-4.0.0.tar.xz
deleted file mode 100644
index d3c983a..0000000
--- a/lalsimulation-4.0.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4096a31f70450e6d5909a5e1147b779169852887d55b806c8b859f87983f20d7
-size 7471768
diff --git a/lalsimulation-5.2.0.tar.xz b/lalsimulation-5.2.0.tar.xz
new file mode 100644
index 0000000..907712c
--- /dev/null
+++ b/lalsimulation-5.2.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4b359a8d5d8722c549275f02b7148c6174c2d5c17f609a1b0f9c00ce18191aaa
+size 7638540
diff --git a/lalsimulation.changes b/lalsimulation.changes
index f3b0f09..4342cf2 100644
--- a/lalsimulation.changes
+++ b/lalsimulation.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Tue May 23 08:02:55 UTC 2023 - Atri Bhattacharya <badshah400@gmail.com>
+
+- Update to version 5.2.0:
+  * No release notes.
+- Drop swig_4_1_compat.patch: incorporated upstream.
+- Pass -Wno-error=enum-int-mismatch to CFLAGS to avoid build
+  failures on a trivial type redefinition issue (communicated to
+  upstream via email).
+- Update shlib package name in keeping with upstream so version.
+
 -------------------------------------------------------------------
 Sun Feb 12 05:53:50 UTC 2023 - Atri Bhattacharya <badshah400@gmail.com>
 
diff --git a/lalsimulation.spec b/lalsimulation.spec
index ba62206..31feb5c 100644
--- a/lalsimulation.spec
+++ b/lalsimulation.spec
@@ -21,18 +21,16 @@
 # Py2 support dropped upstream
 %define skip_python2 1
 
-%define shlib liblalsimulation31
+%define shlib liblalsimulation32
 # octave >= 6 not supported
 %bcond_with octave
 Name:           lalsimulation
-Version:        4.0.0
+Version:        5.2.0
 Release:        0
 Summary:        LSC Algorithm Simulation Library
 License:        GPL-2.0-only
 URL:            https://wiki.ligo.org/Computing/DASWG/LALSuite
 Source:         https://software.igwn.org/sources/source/lalsuite/%{name}-%{version}.tar.xz
-# PATCH-FIX-UPSTREAM swig_4_1_compat.patch badshah40@gmail.com -- Ensure compatibility with swig 4.1; patch taken from upstream
-Patch0:         https://git.ligo.org/lscsoft/lalsuite/-/commit/17bdccd92ab76abfe617e3eb38edf85ab4dfe424.patch#/swig_4_1_compat.patch
 BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module lal >= 7.2.0}
 BuildRequires:  %{python_module numpy >= 1.7}
@@ -113,6 +111,8 @@ export PYTHON=%{_bindir}/$python
 mkdir ../$python
 cp -pr ./ ../$python
 pushd ../$python
+export CFLAGS="%{optflags} -Wno-error=enum-int-mismatch"
+export CXXFLAGS=$CFLAGS
 %configure \
   %{?with_octave:--enable-swig-octave} \
   %{!?with_octave:--disable-swig-octave}
diff --git a/swig_4_1_compat.patch b/swig_4_1_compat.patch
deleted file mode 100644
index c9d0e0e..0000000
--- a/swig_4_1_compat.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-From 17bdccd92ab76abfe617e3eb38edf85ab4dfe424 Mon Sep 17 00:00:00 2001
-From: Karl Wette <karl.wette@ligo.org>
-Date: Sat, 26 Nov 2022 14:35:05 +1100
-Subject: [PATCH] lalsimulation/lib/LALSimSphHarmSeries.h: fix misspelled SWIG
- directive
-
----
- lalsimulation/lib/LALSimSphHarmSeries.h | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/lalsimulation/lib/LALSimSphHarmSeries.h b/lalsimulation/lib/LALSimSphHarmSeries.h
-index 1bf7b239d9..9ee6b7ba01 100644
---- a/lalsimulation/lib/LALSimSphHarmSeries.h
-+++ b/lalsimulation/lib/LALSimSphHarmSeries.h
-@@ -96,8 +96,8 @@ void XLALDestroySphHarmPolarTimeSeries(SphHarmPolarTimeSeries* ts);
- UINT4 XLALSphHarmPolarTimeSeriesGetMaxL(SphHarmPolarTimeSeries* ts);
- 
- #ifdef SWIG
--SWIGLAL(OWNED_BY_1ST_ARG(REAL8TimeSeries*, XLALSphHarmPolarTimeSeriesGetModeAmplitude));
--SWIGLAL(OWNED_BY_1ST_ARG(REAL8TimeSeries*, XLALSphHarmPolarTimeSeriesGetModePhase));
-+SWIGLAL(RETURN_OWNED_BY_1ST_ARG(REAL8TimeSeries*, XLALSphHarmPolarTimeSeriesGetModeAmplitude));
-+SWIGLAL(RETURN_OWNED_BY_1ST_ARG(REAL8TimeSeries*, XLALSphHarmPolarTimeSeriesGetModePhase));
- #endif
- 
- REAL8TimeSeries* XLALSphHarmPolarTimeSeriesGetModeAmplitude(SphHarmPolarTimeSeries *ts, UINT4 l, INT4 m);
--- 
-GitLab
-