diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # ChangeLog for crypton-x509-system
 
+## 1.9.0
+
+* Using "ram" instead of "memory"
+  [#29](https://github.com/kazu-yamamoto/crypton-certificate/pull/29)
+
 ## 1.8.0
 
 * Depend indirectly on package `time-hourglass`, rather than `hourglass`. Date
diff --git a/crypton-x509-system.cabal b/crypton-x509-system.cabal
--- a/crypton-x509-system.cabal
+++ b/crypton-x509-system.cabal
@@ -1,6 +1,6 @@
 cabal-version:      >=1.10
 name:               crypton-x509-system
-version:            1.8.0
+version:            1.9.0
 license:            BSD3
 license-file:       LICENSE
 copyright:          Vincent Hanquez <vincent@snarc.org>
@@ -39,8 +39,8 @@
         filepath,
         process,
         crypton-pem >=0.2.4 && <0.4,
-        crypton-x509 >=1.8.0,
-        crypton-x509-store >=1.8.0
+        crypton-x509 >=1.9.0 && <1.10,
+        crypton-x509-store >=1.9.0 && <1.10
 
     if os(windows)
         exposed-modules: System.X509.Win32