diff --git a/README.md b/README.md
index a8ab780d..181a74d1 100644
--- a/README.md
+++ b/README.md
@@ -174,7 +174,7 @@ Use UTF-16 (but UTF-16 is not supported in GNU windres).
     - The infinite loop is avoided by changing the loop variables to 32-bits.
     - Delphi DFM data support.
     - Improved context menu.
-- v.5.3.7 (2020.XX.YY)
+- v.5.3.7 (2020.04.28)
     - Updated file change flag when file drop.
     - Improved the filename when extracting.
     - Strengthened EGA.
diff --git a/README.txt b/README.txt
index efd28338..789bc2e9 100644
--- a/README.txt
+++ b/README.txt
@@ -172,7 +172,7 @@ Question 5. Why did I get garbled characters when compiling with Visual Studio?
     - The infinite loop is avoided by changing the loop variables to 32-bits.
     - Delphi DFM data support.
     - Improved context menu.
-- v.5.3.7 (2020.XX.YY)
+- v.5.3.7 (2020.04.28)
     - Updated file change flag when file drop.
     - Improved the filename when extracting.
     - Strengthened EGA.
diff --git a/READMEIT.txt b/READMEIT.txt
index 6cde1eb6..1f21a965 100644
--- a/READMEIT.txt
+++ b/READMEIT.txt
@@ -170,7 +170,7 @@ Domanda 5. Perchè ottengo caratteri confusi quando compilo con Visual Studio?
   The infinite loop is avoided by changing the loop variables to 32-bits.
   Delphi DFM data support.
   Improved context menu.
-- v.5.3.7 (YY.XX.2020)
+- v.5.3.7 (28.04.2020)
   Updated file change flag when file drop.
   Improved the filename when extracting.
   Strengthened EGA.
diff --git a/READMEJP.txt b/READMEJP.txt
index f4a85479..a4c5826b 100644
--- a/READMEJP.txt
+++ b/READMEJP.txt
@@ -488,7 +488,7 @@
         ループ変数を32ビットに変更し、無限ループを回避した。
         Delphi DFM データのサポート。
         コンテキストメニューを改良。
-    v.5.3.7 (2020.XX.YY)
+    v.5.3.7 (2020.04.28)
         ファイルドロップ時のファイル変更フラグを更新。
         抽出時のファイル名を改良。
         EGA を強化。