diff --git a/Dockerfile b/Dockerfile
index 4d8a666..fe3ca72 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,5 +8,5 @@ FROM alpine:3.19.1
 # hadolint ignore=DL3018
 COPY --from=builder /go/src/github.com/dokku/semver-generator/semver-generator /usr/local/bin/semver-generator
 COPY github-entrypoint /usr/local/bin/github-entrypoint
-ENTRYPOINT ["/usr/local/bin/semver-generator"]
+ENTRYPOINT ["/usr/local/bin/github-entrypoint"]
 LABEL org.opencontainers.image.description "A tool for generating a semver version from an existing version and a desired bump level"
\ No newline at end of file
diff --git a/github-entrypoint b/github-entrypoint
index 3a08ff1..9047f97 100755
--- a/github-entrypoint
+++ b/github-entrypoint
@@ -1,3 +1,7 @@
 #!/usr/bin/env sh
 
-/usr/local/bin/semver-generator --bump "$INPUT_BUMP" --input "$INPUT_VERSION"
+if [ -n "$INPUT_VERSION" ] && [ -n "$INPUT_BUMP" ]; then
+  /usr/local/bin/semver-generator --bump "$INPUT_BUMP" --input "$INPUT_VERSION"
+else
+  /usr/local/bin/semver-generator "$@"
+fi