diff --git a/Containerfile b/Containerfile
index fc097e5..f0b2174 100644
--- a/Containerfile
+++ b/Containerfile
@@ -1,6 +1,6 @@
-FROM fedora:40
+FROM fedora:39
 
-ARG VERSION=40
+ARG VERSION=39
 
 ENV ARCH="x86_64"
 ENV IMAGE_NAME="base"
diff --git a/Makefile b/Makefile
index a1dd261..165eec5 100644
--- a/Makefile
+++ b/Makefile
@@ -79,6 +79,7 @@ $(ISO_NAME): results/images/boot.iso container/$(IMAGE_NAME)-$(IMAGE_TAG) xorris
 	xorriso -dialog on < $(_BASE_DIR)/xorriso/input.txt
 	implantisomd5 $(ISO_NAME)
 	chmod ugo=r $(ISO_NAME)
+	$(if $(GITHUB_OUTPUT), echo "iso_name=$(ISO_NAME)" >> $(GITUHB_OUTPUT))
 
 # Build boot.iso using Lorax
 results/images/boot.iso: external/lorax/branch-$(VERSION) $(filter lorax_templates/%,$(_LORAX_TEMPLATES)) $(_REPO_FILES)
diff --git a/test/iso/install_hash.sh b/test/iso/install_hash.sh
index ad04549..de6fcc6 100644
--- a/test/iso/install_hash.sh
+++ b/test/iso/install_hash.sh
@@ -8,7 +8,7 @@ then
     echo "Found:"
     checkisomd5 --md5sumonly ../../${ISO_NAME}
     echo "Expected:"
-    implantisomd5 --force base-39.iso
+    implantisomd5 --force ../../${ISO_NAME}
 fi
 
 cd $(dirname ../../${ISO_NAME}) && sha256sum -c $(basename ${ISO_NAME})-CHECKSUM
\ No newline at end of file