diff --git a/Dockerfile b/Dockerfile
index 41407f0..488d25c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ COPY . /git/
 RUN find . -type d -name .git -exec git describe --always --dirty > /git-version.txt \;
 
 
-FROM python:3.11
+FROM python:3.8
 
 EXPOSE 8080
 
diff --git a/requirements.txt b/requirements.txt
index 69120f0..b5f383f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-tornado==6.3.3
+tornado==6.0.4
 isodate==0.6.0
-pytest==7.4.2
+pytest==5.4.1
 GitPython==3.1.37
\ No newline at end of file