diff --git a/README.md b/README.md
index 4420bd4f..2150e4b8 100644
--- a/README.md
+++ b/README.md
@@ -108,7 +108,7 @@ It's a special message compiler I made. See mcdx/MESSAGETABLEDX.md for details.
     - `WS_POPUPWINDOW | WS_BORDER` must be `WS_POPUPWINDOW | WS_CAPTION`.
     - `RT_FONT` support.
     - Improved "Add Resource" dialog.
- * 2019.XX.YY ver.5.2.2
+ * 2019.08.14 ver.5.2.2
     - Update Italian translation.
     - Support XML, XSLT, SCHEMA and REGISTRY resource types.
     - Improved interpretation when language mismatch of `RT_ICON`/`RT_CURSOR` and `RT_GROUP_ICON`/`RT_GROUP_CURSOR`.
diff --git a/README.txt b/README.txt
index e22b1089..2b9f027b 100644
--- a/README.txt
+++ b/README.txt
@@ -109,7 +109,7 @@ Question 4. What is mcdx?
     - WS_POPUPWINDOW | WS_BORDER must be WS_POPUPWINDOW | WS_CAPTION.
     - RT_FONT support.
     - Improved "Add Resource" dialog.
- * 2019.XX.YY ver.5.2.2
+ * 2019.08.14 ver.5.2.2
     - Update Italian translation.
     - Support XML, XSLT, SCHEMA and REGISTRY resource types.
     - Improved interpretation when language mismatch of RT_ICON/RT_CURSOR and RT_GROUP_ICON/RT_GROUP_CURSOR.
diff --git a/READMEJP.txt b/READMEJP.txt
index 3c6e13eb..0272eaa3 100644
--- a/READMEJP.txt
+++ b/READMEJP.txt
@@ -432,7 +432,7 @@
         WS_POPUPWINDOW | WS_BORDER は、WS_POPUPWINDOW | WS_CAPTION でなければならない。
         RT_FONT のサポート。
         「リソースの追加」ダイアログを改良。
-    2019.XX.YY ver.5.2.2
+    2019.08.14 ver.5.2.2
         イタリア語翻訳を更新。
         XML、XSLT、SCHEMA、そしてREGISTRYリソースタイプのサポート。
         RT_ICON/RT_CURSOR と RT_GROUP_ICON/RT_GROUP_CURSOR の言語不一致のときの解釈を改良。