diff --git a/Doxyfile b/Doxyfile
index 2d26653f..bc814409 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -41,7 +41,7 @@ PROJECT_NAME           = Crypto++
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 8.0
+PROJECT_NUMBER         = 8.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/GNUmakefile b/GNUmakefile
index 5633115f..4d4857cf 100755
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1327,7 +1327,7 @@ libcryptopp.pc:
 	@echo '' >> libcryptopp.pc
 	@echo 'Name: Crypto++' >> libcryptopp.pc
 	@echo 'Description: Crypto++ cryptographic library' >> libcryptopp.pc
-	@echo 'Version: 8.0' >> libcryptopp.pc
+	@echo 'Version: 8.1' >> libcryptopp.pc
 	@echo 'URL: https://cryptopp.com/' >> libcryptopp.pc
 	@echo '' >> libcryptopp.pc
 	@echo 'Cflags: -I$${includedir}' >> libcryptopp.pc
diff --git a/config.h b/config.h
index 8db32c65..aadf63d0 100644
--- a/config.h
+++ b/config.h
@@ -92,7 +92,7 @@
 //   the version of the library the headers came from. It is not
 //   necessarily the version of the library built as a shared object if
 //   versions are inadvertently mixed and matched.
-#define CRYPTOPP_VERSION 800
+#define CRYPTOPP_VERSION 810
 
 // Define this if you want to set a prefix for TestData/ and TestVectors/
 //   Be sure to add the trailing slash since its simple concatenation.
diff --git a/cryptlib.h b/cryptlib.h
index 34b98b03..c5cbce13 100644
--- a/cryptlib.h
+++ b/cryptlib.h
@@ -3,7 +3,7 @@
 /// \file cryptlib.h
 /// \brief Abstract base classes that provide a uniform interface to this library.
 
-/*!	\mainpage Crypto++ Library 8.0 API Reference
+/*!	\mainpage Crypto++ Library 8.1 API Reference
 <dl>
 <dt>Abstract Base Classes<dd>
 	cryptlib.h
diff --git a/cryptopp.rc b/cryptopp.rc
index 0ccf2390..07bfea74 100644
--- a/cryptopp.rc
+++ b/cryptopp.rc
@@ -27,8 +27,8 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 8,0,0,0
- PRODUCTVERSION 8,0,0,0
+ FILEVERSION 8,1,0,0
+ PRODUCTVERSION 8,1,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -46,13 +46,13 @@ BEGIN
             VALUE "Comments", "Free crypto library, more information available at www.cryptopp.com"
             VALUE "CompanyName", "Wei Dai"
             VALUE "FileDescription", "Crypto++® Library DLL"
-            VALUE "FileVersion", "8, 0, 0, 0"
+            VALUE "FileVersion", "8, 1, 0, 0"
             VALUE "InternalName", "cryptopp"
             VALUE "LegalCopyright", "Copyright© 1995-2018 by Wei Dai"
             VALUE "LegalTrademarks", "Crypto++®"
             VALUE "OriginalFilename", "cryptopp.dll"
             VALUE "ProductName", "Crypto++® Library"
-            VALUE "ProductVersion", "8, 0, 0, 0"
+            VALUE "ProductVersion", "8, 1, 0, 0"
         END
     END
     BLOCK "VarFileInfo"