diff --git a/Makefile b/Makefile
index 1c33628..1952e7d 100644
--- a/Makefile
+++ b/Makefile
@@ -45,7 +45,6 @@ clean:
 docs: README.md doc/ctpv.1
 	deptable/list.awk $(PRE) | deptable/markdown.sed | deptable/insert.awk README.md
 	deptable/list.awk $(PRE) | deptable/roff.sed | deptable/insert.awk doc/ctpv.1
-	./updatedate.awk doc/ctpv.1
 
 ctpv: $(OBJ)
 	$(CC) -o $@ $+ $(LDFLAGS)
diff --git a/doc/ctpv.1 b/doc/ctpv.1
index 776d246..21ea9a8 100644
--- a/doc/ctpv.1
+++ b/doc/ctpv.1
@@ -14,7 +14,7 @@
 \&\fB\\$1\fP \fI\\$2\fP\\$3
 ..
 .
-.TH CTPV 1 2022-08-02 Linux "User Manuals"
+.TH CTPV 1 2022 Linux "User Manuals"
 .
 .SH NAME
 ctpv \- terminal previewer
diff --git a/updatedate.awk b/updatedate.awk
deleted file mode 100755
index fb37295..0000000
--- a/updatedate.awk
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/gawk -f
-
-@include "inplace"
-
-BEGIN {
-    FS = " "
-}
-
-/^\.TH / {
-    cmd = "date +%Y-%m-%d"
-    cmd | getline $4
-    close(cmd)
-}
-
-{ print }