diff --git a/.gitignore b/.gitignore
index 8268641..f707de8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-SOURCES/nspr-4.13.1.tar.gz
+SOURCES/nspr-4.17.0.tar.gz
 SOURCES/nspr-config.xml
diff --git a/.nspr.metadata b/.nspr.metadata
index 2ddcc34..f9ef9d5 100644
--- a/.nspr.metadata
+++ b/.nspr.metadata
@@ -1,2 +1,2 @@
-ec6660257d41267a0e6ee25812e9012cb9ddd274 SOURCES/nspr-4.13.1.tar.gz
+00e2f827620d4eb5111ab075e69aa6ce1d88a2af SOURCES/nspr-4.17.0.tar.gz
 f748a225d13fc55d8843c93002a6e8b79cd3779d SOURCES/nspr-config.xml
diff --git a/SPECS/nspr.spec b/SPECS/nspr.spec
index 17975a0..6fb5af8 100644
--- a/SPECS/nspr.spec
+++ b/SPECS/nspr.spec
@@ -1,7 +1,7 @@
 Summary:        Netscape Portable Runtime
 Name:           nspr
-Version:        4.13.1
-Release:        1.0%{?dist}
+Version:        4.17.0
+Release:        1%{?dist}
 License:        MPLv2.0
 URL:            http://www.mozilla.org/projects/nspr/
 Group:          System Environment/Libraries
@@ -145,6 +145,12 @@ done
 %{_mandir}/man*/*
 
 %changelog
+* Fri Oct  6 2017 Daiki Ueno <dueno@redhat.com> - 4.17.0-1
+- Rebase to NSPR 4.17
+
+* Wed Aug 23 2017 Daiki Ueno <dueno@redhat.com> - 4.16.0-1
+- Rebase to NSPR 4.16
+
 * Fri Feb 10 2017 Daiki Ueno <dueno@redhat.com> - 4.13.1-1.0
 - Rebase to NSPR 4.13.1