diff --git a/include/hstio.h b/include/hstio.h
index f76adbaa7..33ee9af1e 100644
--- a/include/hstio.h
+++ b/include/hstio.h
@@ -8,7 +8,7 @@ extern "C" {
 # include <stdlib.h>
 # include <stdio.h>
 
-# define HSTIO_VERSION "HSTIO Version 2.6 (11-Mar-2010)"
+# define HSTIO_VERSION "HSTIO Version 2.7 (09-Aug-2018)"
 
 /*
 ** Data Structures and I/O Function Declarations for
diff --git a/pkg/acs/calacs/include/acsversion.h b/pkg/acs/calacs/include/acsversion.h
index 4d8350e73..8dab2f86f 100644
--- a/pkg/acs/calacs/include/acsversion.h
+++ b/pkg/acs/calacs/include/acsversion.h
@@ -2,7 +2,7 @@
 #define INCL_ACSVERSION_H
 
 /* This string is written to the output primary header as CAL_VER. */
-#define ACS_CAL_VER "10.1.0 (07-Aug-2018)"
+#define ACS_CAL_VER "10.1.0 (09-Aug-2018)"
 #define ACS_CAL_VER_NUM "10.1.0"
 
 /* name and version number of the CTE correction algorithm */