diff --git a/.prev-version b/.prev-version
index cc1923a4..f2807196 100644
--- a/.prev-version
+++ b/.prev-version
@@ -1 +1 @@
-3.8
+3.8.1
diff --git a/NEWS b/NEWS
index d8aa0670..d1a17880 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,8 @@
 GNU Bison NEWS
 
+* Noteworthy changes in release ?.? (????-??-??) [?]
+
+
 * Noteworthy changes in release 3.8.1 (2021-09-11) [stable]
 
   The generation of prototypes for yylex and yyerror in Yacc mode is
diff --git a/src/parse-gram.c b/src/parse-gram.c
index 3bc44dbd..11328b63 100644
--- a/src/parse-gram.c
+++ b/src/parse-gram.c
@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 3.8.  */
+/* A Bison parser, made by GNU Bison 3.8.3-84b7.  */
 
 /* Bison implementation for Yacc-like parsers in C
 
@@ -46,10 +46,10 @@
    USER NAME SPACE" below.  */
 
 /* Identify Bison output, and Bison version.  */
-#define YYBISON 30800
+#define YYBISON -1
 
 /* Bison version string.  */
-#define YYBISON_VERSION "3.8"
+#define YYBISON_VERSION "3.8.3-84b7"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
diff --git a/src/parse-gram.h b/src/parse-gram.h
index 77849263..37c62e22 100644
--- a/src/parse-gram.h
+++ b/src/parse-gram.h
@@ -1,4 +1,4 @@
-/* A Bison parser, made by GNU Bison 3.8.  */
+/* A Bison parser, made by GNU Bison 3.8.3-84b7.  */
 
 /* Bison interface for Yacc-like parsers in C