diff --git a/bionic/x86/Dockerfile b/bionic/x86/Dockerfile
index dbb4b4cac299251cd8516f45816b7f2b4aad04dd..c72c2aeb404d04deaf36c0d0c1661985d084aaee 100644
--- a/bionic/x86/Dockerfile
+++ b/bionic/x86/Dockerfile
@@ -7,7 +7,7 @@ RUN apt-get update \
  && eatmydata apt-get upgrade -y
 
 RUN eatmydata apt-get install -y \
-  sudo wget curl tar expect git \
+  sudo wget curl tar expect git=2.17.0 \
   devscripts build-essential lintian ccache pbuilder aptitude apt-utils
 
 RUN curl https://packages.icinga.com/icinga.key | apt-key add - \
diff --git a/bionic/x86_64/Dockerfile b/bionic/x86_64/Dockerfile
index 7da9c94e73c7f0313427273067a2b758699c0b82..73538142e4b754903dbcb264b7491e530298287e 100644
--- a/bionic/x86_64/Dockerfile
+++ b/bionic/x86_64/Dockerfile
@@ -15,7 +15,7 @@ RUN apt-get update \
  && eatmydata apt-get upgrade -y
 
 RUN eatmydata apt-get install -y \
-  sudo wget curl tar expect git \
+  sudo wget curl tar expect git=2.17.0 \
   devscripts build-essential lintian ccache pbuilder aptitude apt-utils golang-1.11-go
 
 RUN curl https://packages.icinga.com/icinga.key | apt-key add - \