diff --git a/Dockerfile b/Dockerfile
index c863ff9433c..aa9415fd1e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,7 +27,7 @@ COPY requirements_all.txt requirements_all.txt
 # Uninstall enum34 because some dependencies install it but breaks Python 3.4+.
 # See PR #8103 for more info.
 RUN pip3 install --no-cache-dir -r requirements_all.txt && \
-    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop cchardet cython tensorflow
+    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop==0.11.3 cchardet cython tensorflow
 
 # Copy source
 COPY . .
diff --git a/virtualization/Docker/Dockerfile.dev b/virtualization/Docker/Dockerfile.dev
index de460319bc2..03d6ab47c24 100644
--- a/virtualization/Docker/Dockerfile.dev
+++ b/virtualization/Docker/Dockerfile.dev
@@ -29,7 +29,7 @@ COPY requirements_all.txt requirements_all.txt
 # Uninstall enum34 because some dependencies install it but breaks Python 3.4+.
 # See PR #8103 for more info.
 RUN pip3 install --no-cache-dir -r requirements_all.txt && \
-    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop cchardet cython
+    pip3 install --no-cache-dir mysqlclient psycopg2 uvloop==0.11.3 cchardet cython
 
 # BEGIN: Development additions