diff --git a/Makefile b/Makefile
index 2be2925..404204a 100644
--- a/Makefile
+++ b/Makefile
@@ -10,10 +10,12 @@ PATCH_OPAMFILES = sed -i 's/"@runtest"\s*{with-test}//g' $(OPAMFILES)
 
 .PHONY: all
 all:
+	./update-stramon-version-string.sh
 	dune build @all
 
 .PHONY: release-static
 release-static :
+	./update-stramon-version-string.sh
 	OCAMLPARAM='_,ccopt=-static' dune build --release bin/stramon.exe
 
 .PHONY: lib-tests
diff --git a/bin/dune b/bin/dune
index e8cef31..5c2a0e2 100644
--- a/bin/dune
+++ b/bin/dune
@@ -16,5 +16,4 @@
             timedesc-tzlocal.utc
             fmt
             yojson
-            dune-build-info
             ))
diff --git a/bin/stramon.ml b/bin/stramon.ml
index 47e234e..f04e1a4 100644
--- a/bin/stramon.ml
+++ b/bin/stramon.ml
@@ -26,11 +26,6 @@ If provided path PATH is a directory, then output path is PATH/stramon_DATE-TIME
     ("--", Rest add_to_command, "");
   ]
 
-let version_str =
-  match Build_info.V1.version () with
-  | None -> "n/a"
-  | Some v -> Build_info.V1.Version.to_string v
-
 let usage_msg = "stramon [-o JSON_OUTPUT] -- prog arg ..."
 
 let pp_file_date_time =
@@ -175,7 +170,7 @@ let () =
   try
     Arg.parse speclist add_to_command usage_msg;
     if !print_version then (
-      Printf.printf "%s\n" version_str;
+      Printf.printf "%s\n" Version_string.s;
       exit 0
     ) else (
       let command = List.rev !command in
diff --git a/bin/version_string.ml b/bin/version_string.ml
new file mode 100644
index 0000000..312b9a4
--- /dev/null
+++ b/bin/version_string.ml
@@ -0,0 +1 @@
+let s = "0.2.1"
diff --git a/containers/old-ocaml/Dockerfile b/containers/old-ocaml/Dockerfile
index d41648e..441dec6 100644
--- a/containers/old-ocaml/Dockerfile
+++ b/containers/old-ocaml/Dockerfile
@@ -12,4 +12,3 @@ RUN opam install alcotest qcheck qcheck-alcotest
 RUN opam install timedesc
 RUN opam install yojson
 RUN opam install odoc
-RUN opam install dune-build-info
diff --git a/containers/static-build/Dockerfile b/containers/static-build/Dockerfile
index 9d2f29c..3c2e899 100644
--- a/containers/static-build/Dockerfile
+++ b/containers/static-build/Dockerfile
@@ -12,4 +12,3 @@ RUN opam install timedesc
 RUN opam install yojson
 RUN apk add libexecinfo-static
 RUN opam install odoc
-RUN opam install dune-build-info
diff --git a/dune-project b/dune-project
index 7acaaa2..0f9e692 100644
--- a/dune-project
+++ b/dune-project
@@ -42,7 +42,6 @@ or to be used in similar fashion of process monitoring.
 
 (package
  (name stramon)
- (version "0.2.1")
  (synopsis "Process behavior monitoring utility based on strace")
  (description "")
  (documentation https://github.com/darrenldl/stramon)
diff --git a/update-stramon-version-string.sh b/update-stramon-version-string.sh
new file mode 100755
index 0000000..6109f3c
--- /dev/null
+++ b/update-stramon-version-string.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+path="bin/version_string.ml"
+
+ver=$(cat CHANGELOG.md \
+  | grep '## Stramon' \
+  | head -n 1 \
+  | sed -n 's/^## Stramon\s*\(\S*\)$/\1/p')
+
+echo "Detected version for Stramon:" $ver
+
+echo "Writing to" $path
+
+echo "let s = "\"$ver\" > $path