diff --git a/util/manibuilder/Dockerfile.debian-debootstrap b/util/manibuilder/Dockerfile.debian-debootstrap
index ce201f8c6..d2e0eee79 100644
--- a/util/manibuilder/Dockerfile.debian-debootstrap
+++ b/util/manibuilder/Dockerfile.debian-debootstrap
@@ -10,6 +10,7 @@ RUN \
 	{ apt-get -qqy install libjaylink-dev || true; } && \
 	apt-get clean
 
+ENV GIT_SSL_NO_VERIFY=1
 USER mani
 RUN \
 	cd && \
diff --git a/util/manibuilder/Dockerfile.ubuntu-debootstrap b/util/manibuilder/Dockerfile.ubuntu-debootstrap
index fe3ad1ea8..f002d9a12 100644
--- a/util/manibuilder/Dockerfile.ubuntu-debootstrap
+++ b/util/manibuilder/Dockerfile.ubuntu-debootstrap
@@ -23,6 +23,7 @@ RUN \
 	{ apt-get -qqy install libjaylink-dev || true; } && \
 	apt-get clean
 
+ENV GIT_SSL_NO_VERIFY=1
 USER mani
 RUN \
 	cd && \