diff --git a/src/Common/Volumes.c b/src/Common/Volumes.c
index 3b2c0ca7..3aadd970 100644
--- a/src/Common/Volumes.c
+++ b/src/Common/Volumes.c
@@ -798,24 +798,7 @@ int CreateVolumeHeaderInMemory (BOOL bBoot, char *header, int ea, int mode, Pass
 	cryptoInfo->HeaderVersion = VOLUME_HEADER_VERSION;
 
 	// Required program version to handle this volume
-	switch (mode)
-	{
-	case LRW:
-		// Deprecated/legacy
-		mputWord (p, 0x0410);
-		break;
-	case OUTER_CBC:
-	case INNER_CBC:
-		// Deprecated/legacy
-		mputWord (p, 0x0300);
-		break;
-	case CBC:
-		// Deprecated/legacy
-		mputWord (p, hiddenVolumeSize > 0 ? 0x0300 : 0x0100);
-		break;
-	default:
-		mputWord (p, requiredProgramVersion != 0 ? requiredProgramVersion : TC_VOLUME_MIN_REQUIRED_PROGRAM_VERSION);
-	}
+	mputWord (p, requiredProgramVersion != 0 ? requiredProgramVersion : TC_VOLUME_MIN_REQUIRED_PROGRAM_VERSION);
 
 	// CRC of the master key data
 	x = GetCrc32(keyInfo.master_keydata, MASTER_KEYDATA_SIZE);
diff --git a/src/Common/Volumes.h b/src/Common/Volumes.h
index 14e9868b..0b5116fd 100644
--- a/src/Common/Volumes.h
+++ b/src/Common/Volumes.h
@@ -21,11 +21,11 @@ extern "C" {
 
 // Version number written to volume header during format;
 // specifies the minimum program version required to mount the volume
-#define TC_VOLUME_MIN_REQUIRED_PROGRAM_VERSION	0x0700
+#define TC_VOLUME_MIN_REQUIRED_PROGRAM_VERSION	0x0100
 
 // Version number written (encrypted) to the key data area of an encrypted system partition/drive;
 // specifies the minimum program version required to decrypt the system partition/drive
-#define TC_SYSENC_KEYSCOPE_MIN_REQ_PROG_VERSION	0x0700
+#define TC_SYSENC_KEYSCOPE_MIN_REQ_PROG_VERSION	0x0100
 
 // Current volume format version (created by TrueCrypt 6.0+)
 #define TC_VOLUME_FORMAT_VERSION				2