diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 39412a86..776fbf76 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -106,4 +106,4 @@ jobs:
           FLUX_TOKEN: ${{ secrets.FLUX_TOKEN }}
           FLUX_WEBHOOK_URL: ${{ secrets.FLUX_WEBHOOK_URL }}
         run: |
-          curl --disable --silent --show-error --location --max-time 30 --header "X-Signature: sha1=$(printf "{}" | openssl dgst -sha1 -r -hmac "${FLUX_TOKEN}"| awk '{print $1}')" --data "{}" "${FLUX_WEBHOOK_URL}"
+          curl --disable --silent --show-error --location --max-time 30 --header "X-Signature: sha256=$(printf "{}" | openssl dgst -sha256 -r -hmac "${FLUX_TOKEN}"| awk '{print $1}')" --data "{}" "${FLUX_WEBHOOK_URL}"
diff --git a/Makefile b/Makefile
index e6740152..0c1553bb 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ help: Makefile
 name:
 	@printf "$(APP_NAME)"
 
-## version: Output last commit sha1
+## version: Output last commit sha
 .PHONY: version
 version:
 	@printf "$(shell git rev-parse --short HEAD)"
diff --git a/cmd/fibr/templates/upload-form.html b/cmd/fibr/templates/upload-form.html
index ab0845aa..4cb10af3 100644
--- a/cmd/fibr/templates/upload-form.html
+++ b/cmd/fibr/templates/upload-form.html
@@ -42,11 +42,11 @@
     }
 
     /**
-     * Compute the sha1 on input.
+     * Compute the sha on input.
      * @param  {Object}          data Data to hash
-     * @return {Promise<String>}      Promise that will resolve the sha1 string
+     * @return {Promise<String>}      Promise that will resolve the sha string
      */
-    async function sha1(data) {
+    async function sha(data) {
       const buffer = await crypto.subtle.digest(
         'SHA-256',
         new TextEncoder('utf-8').encode(data),
@@ -60,7 +60,7 @@
      * @return {Promise<String>} Promise that will resolve the message id.
      */
     async function fileMessageId(file) {
-      const hash = await sha1(
+      const hash = await sha(
         JSON.stringify({
           name: file.name,
           size: file.size,