diff --git a/Dockerfile b/Dockerfile
index e202498..e783b16 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
-FROM python:3.7
+FROM python:3.9
 
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
 
 ENV PYTHONPATH=/usr/src/app/
 
 COPY requirements*.txt /usr/src/app/
 RUN pip install --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt -r requirements-swh.txt
diff --git a/requirements.txt b/requirements.txt
index cc7c65b..79d6084 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,8 @@
-ariadne==0.13.0
-uvicorn==0.15.0
+ariadne==0.14.1
+asgiref==3.4.1
+click==8.0.1
+graphql-core==3.1.6
+h11==0.12.0
+starlette==0.14.2
+typing-extensions==3.10.0.2
+uvicorn==0.17.4
diff --git a/swh/graphql/resolvers/content.py b/swh/graphql/resolvers/content.py
deleted file mode 100644
index e69de29..0000000
diff --git a/swh/graphql/resolvers/directory.py b/swh/graphql/resolvers/directory.py
deleted file mode 100644
index e69de29..0000000
diff --git a/swh/graphql/resolvers/origin.py b/swh/graphql/resolvers/origin.py
index a61bb65..43d75a6 100644
--- a/swh/graphql/resolvers/origin.py
+++ b/swh/graphql/resolvers/origin.py
@@ -1,20 +1,20 @@
 from ariadne import ObjectType
 
 from . import query
 
 origin = ObjectType("Origin")
 
 
 @query.field("origin")
 def resolve_origin(_, info, url):
     return {"url": "http://example.com"}
 
 
 @origin.field("url")
 def url(origin, info):
     return origin["url"]
 
 
 @origin.field("visits")
 def visits(origin, info):
-    return []
+    return [{"status": "success"}]
diff --git a/swh/graphql/resolvers/revision.py b/swh/graphql/resolvers/revision.py
deleted file mode 100644
index e69de29..0000000
diff --git a/swh/graphql/resolvers/snapshot.py b/swh/graphql/resolvers/snapshot.py
deleted file mode 100644
index 8b13789..0000000
--- a/swh/graphql/resolvers/snapshot.py
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/swh/graphql/schema/schema.gql b/swh/graphql/schema/schema.gql
deleted file mode 100644
index 7190629..0000000
--- a/swh/graphql/schema/schema.gql
+++ /dev/null
@@ -1,54 +0,0 @@
-Initial Entry points
---------------------
-
-origin(url) {
-  url
-  vsits(first:n) {
-    totalCount
-    edges {
-      node {
-        timestamp
-      }
-      cursor
-    }
-  }
-}
-
-visit {
-  status
-  timestamp
-  snapshot
-}
-
-snapshots(origin-url, limit)  // not a must have
-
-snapshot(sha1) {
-  sha1
-  origin
-  branches(limit) {
-     name
-     head revision
-  }
-}
-
-revision(sha1) {
-  sha1
-  author
-  ...
-  parent revisions(limit)
-  directory
-}
-
-directory(sha1) {
-  sha1
-  name
-  ...
-  contents(limit)
-  directories(limit)
-}
-
-content(sha1) {
-  sha1
-  name
-  ...
-}