diff --git a/package.xml b/package.xml
index 688cafdb..53cda1b3 100644
--- a/package.xml
+++ b/package.xml
@@ -28,10 +28,10 @@
   <email>nikic@php.net</email>
   <active>yes</active>
  </lead>
- <date>2019-02-08</date>
+ <date>2019-10-28</date>
  <version>
-  <release>5.1.18dev</release>
-  <api>5.1.15</api>
+  <release>5.1.18</release>
+  <api>5.1.18</api>
  </version>
  <stability>
   <release>stable</release>
diff --git a/php_apc.h b/php_apc.h
index 83be95b3..152bff52 100644
--- a/php_apc.h
+++ b/php_apc.h
@@ -33,7 +33,7 @@
 #include "apc.h"
 #include "apc_globals.h"
 
-#define PHP_APCU_VERSION "5.1.18-dev"
+#define PHP_APCU_VERSION "5.1.18"
 #define PHP_APCU_EXTNAME "apcu"
 
 PHP_APCU_API PHP_FUNCTION(apcu_add);