diff --git a/pngquant-old_libpng.patch b/pngquant-old_libpng.patch
index b1de612..086b40c 100644
--- a/pngquant-old_libpng.patch
+++ b/pngquant-old_libpng.patch
@@ -1,6 +1,6 @@
-diff -rupN --no-dereference pngquant-2.14.1/test/test.sh pngquant-2.14.1-new/test/test.sh
---- pngquant-2.14.1/test/test.sh	2021-02-28 19:13:35.000000000 +0100
-+++ pngquant-2.14.1-new/test/test.sh	2021-03-03 10:26:45.696538703 +0100
+diff -rupN --no-dereference pngquant-2.15.0/test/test.sh pngquant-2.15.0-new/test/test.sh
+--- pngquant-2.15.0/test/test.sh	2021-05-08 15:51:58.000000000 +0200
++++ pngquant-2.15.0-new/test/test.sh	2021-05-12 12:34:08.019290564 +0200
 @@ -53,7 +53,7 @@ function test_skip() {
      $BIN "$TMPDIR/skiptest.png" -Q 0-50 -o "$TMPDIR/q50output.png"
      test -f "$TMPDIR/q50output.png"
diff --git a/pngquant.spec b/pngquant.spec
index a698aef..b7d6d41 100644
--- a/pngquant.spec
+++ b/pngquant.spec
@@ -1,7 +1,7 @@
 %global libname libimagequant
 
 Name:           pngquant
-Version:        2.14.1
+Version:        2.15.0
 Release:        1%{?dist}
 Summary:        PNG quantization tool for reducing image file size
 
@@ -62,6 +62,9 @@ export CFLAGS="%{optflags} -fno-math-errno -funroll-loops -fomit-frame-pointer -
 
 
 %changelog
+* Wed May 12 2021 Sandro Mani <manisandro@gmail.com> - 2.15.0-1
+- Update to 2.15.0
+
 * Wed Mar 03 2021 Sandro Mani <manisandro@gmail.com> - 2.14.1-1
 - Update to 2.14.1
 
diff --git a/sources b/sources
index 56af3e6..52f5cbd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (pngquant-2.14.1.tar.gz) = 6ae885e2a53bb0fbb12563dac1874889cd66dd0de3ceb148af19a16127c3170b31e9e877016da800fbe32a00faeb1e527ce8666d1f83a7ec998ec74c404e0252
+SHA512 (pngquant-2.15.0.tar.gz) = b82992ffc3c0bed66bdd99140539dcf15c7535fbcb0f1093288dd64841a014f924949e0e6f53d4ff758e967b6e0470c84246361c89cbee3602f54d6655065bdc