diff --git a/configure.in b/configure.in
index d278061ef5322..5d3a6468f4d83 100644
--- a/configure.in
+++ b/configure.in
@@ -120,7 +120,7 @@ int zend_sprintf(char *buffer, const char *format, ...);
 PHP_MAJOR_VERSION=7
 PHP_MINOR_VERSION=1
 PHP_RELEASE_VERSION=20
-PHP_EXTRA_VERSION="-dev"
+PHP_EXTRA_VERSION="RC1"
 PHP_VERSION="$PHP_MAJOR_VERSION.$PHP_MINOR_VERSION.$PHP_RELEASE_VERSION$PHP_EXTRA_VERSION"
 PHP_VERSION_ID=`expr [$]PHP_MAJOR_VERSION \* 10000 + [$]PHP_MINOR_VERSION \* 100 + [$]PHP_RELEASE_VERSION`
 
diff --git a/main/php_version.h b/main/php_version.h
index dcb9a710b76b1..dd6169fafbe0a 100644
--- a/main/php_version.h
+++ b/main/php_version.h
@@ -3,6 +3,6 @@
 #define PHP_MAJOR_VERSION 7
 #define PHP_MINOR_VERSION 1
 #define PHP_RELEASE_VERSION 20
-#define PHP_EXTRA_VERSION "-dev"
-#define PHP_VERSION "7.1.20-dev"
+#define PHP_EXTRA_VERSION "RC1"
+#define PHP_VERSION "7.1.20RC1"
 #define PHP_VERSION_ID 70120