diff --git a/fishjam_protos/mix.exs b/fishjam_protos/mix.exs
index 19da41f..dc036e7 100644
--- a/fishjam_protos/mix.exs
+++ b/fishjam_protos/mix.exs
@@ -1,10 +1,12 @@
 defmodule FishjamProtos.MixProject do
   use Mix.Project
 
+  @release_version "0.4.0"
+
   def project do
     [
       app: :fishjam_protos,
-      version: "0.4.0",
+      version: @release_version,
       elixir: "~> 1.17",
       start_permanent: Mix.env() == :prod,
       elixirc_paths: ["lib"],
diff --git a/release-automation/bump-version.sh b/release-automation/bump-version.sh
new file mode 100755
index 0000000..0cf81ea
--- /dev/null
+++ b/release-automation/bump-version.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+set -e
+
+# Usage: ./bump-version.sh <version>
+VERSION="$1"
+MIX_EXS="mix.exs"
+README="README.md"
+
+if [ -z "$VERSION" ]; then
+    echo "Usage: $0 <version>"
+    exit 1
+fi
+
+# Navigate to fishjam_protos directory
+cd fishjam_protos
+
+BRANCH_NAME="release-$VERSION"
+git checkout -b "$BRANCH_NAME"
+
+if [ ! -f "$MIX_EXS" ]; then
+    echo "Error: $MIX_EXS not found in repo root"
+    exit 1
+fi
+
+# Search and replace `@release_version "<version>"` to new version
+if grep -q "@release_version" "$MIX_EXS"; then
+    sed -i.bak -E 's/(@release_version[[:space:]]*")[^"]*/\1'"$VERSION"'/' "$MIX_EXS"
+    rm -f "$MIX_EXS.bak"
+else
+    echo "Error: @release_version line not found in $MIX_EXS"
+    exit 1
+fi
+
+# Confirm replacement: accept either a literal version string or the module attribute
+if grep -q "@release_version \"$VERSION\"" "$MIX_EXS"; then
+    echo "Updated $MIX_EXS to $VERSION"
+else
+    echo "Error: Failed to update version in $MIX_EXS via regex"
+    exit 1
+fi
+
+# Update version in README.md if present
+if [ -f "$README" ]; then
+    sed -i.bak -E "s/:fishjam_protos, \"~> [0-9]+\.[0-9]+\.[0-9]+\"/:fishjam_protos, \"~> $VERSION\"/" "$README"
+    rm -f "$README.bak"
+    echo "Updated $README to version $VERSION"
+else
+    echo "⚠️ $README not found, skipping README version update"
+fi
+
+echo "✅ Version bump complete for $VERSION"
+echo "BRANCH_NAME:$BRANCH_NAME"