diff --git a/.gitignore b/.gitignore
index ef5a12f..4065cdf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -92,3 +92,4 @@
 /go1.15.src.tar.gz
 /go1.15.1.src.tar.gz
 /go1.15.2.src.tar.gz
+/go1.15.3.src.tar.gz
diff --git a/golang.spec b/golang.spec
index 6be9142..39c0930 100644
--- a/golang.spec
+++ b/golang.spec
@@ -1,6 +1,7 @@
 %bcond_with bootstrap
 # temporalily ignore test failures
-%ifarch %{ix86} aarch64 %{arm}
+# due to https://github.com/golang/go/issues/39466
+%ifarch aarch64
 %bcond_without ignore_tests
 %else
 %bcond_with ignore_tests
@@ -105,10 +106,10 @@
 %endif
 
 %global go_api 1.15
-%global go_version 1.15.2
+%global go_version 1.15.3
 
 Name:           golang
-Version:        1.15.2
+Version:        1.15.3
 Release:        1%{?dist}
 Summary:        The Go Programming Language
 # source tree includes several copies of Mark.Twain-Tom.Sawyer.txt under Public Domain
@@ -607,6 +608,10 @@ fi
 %endif
 
 %changelog
+* Thu Oct 15 2020 Jakub Čajka <jcajka@redhat.com> - 1.15.3-1
+- Rebase to go1.15.3
+- Resolves: BZ#1888443
+
 * Thu Sep 10 2020 Jakub Čajka <jcajka@redhat.com> - 1.15.2-1
 - Rebase to go1.15.2
 - Resolves: BZ#1877565
diff --git a/sources b/sources
index 53c462f..92d1016 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (go1.15.2.src.tar.gz) = c8b69556ddbbae4790c923547d90259c2208490ed26e75b6318dcc19893f50788e17207140deed1fe9d1e214b9a8f3769242fb7dfd06ebac37ba2c67f0281a73
+SHA512 (go1.15.3.src.tar.gz) = 883fb327ce8aec77381aaa01e95acd0826c74d56a769d2077449b964411e30a5844117fdd941737015983c451a3e8d419bd40954842b199a09c26704577b5bca