diff --git a/Dockerfile b/Dockerfile
index f8611c58a..5491912c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -69,7 +69,7 @@ COPY docker-compose-entrypoint.sh /usr/local/bin/
 COPY --from=docker-cli /usr/local/bin/docker /usr/local/bin/docker
 RUN pip install \
     virtualenv==20.2.1 \
-    tox==3.19.0
+    tox==3.20.1
 COPY requirements-dev.txt .
 COPY requirements-indirect.txt .
 COPY requirements.txt .
diff --git a/requirements-indirect.txt b/requirements-indirect.txt
index fb100a39a..dc5726eef 100644
--- a/requirements-indirect.txt
+++ b/requirements-indirect.txt
@@ -23,6 +23,6 @@ pyrsistent==0.16.0
 smmap==3.0.4
 smmap2==3.0.1
 toml==0.10.1
-tox==3.19.0
+tox==3.20.1
 virtualenv==20.2.1
 wcwidth==0.2.5