thodg/libgit2

diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index fc6108d..d6c75b9 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -112,6 +112,7 @@ jobs:
             name: centos7
           env:
             CMAKE_OPTIONS: -DDEPRECATE_HARD=ON -DUSE_LEAK_CHECKER=valgrind -DUSE_GSSAPI=ON
+            BUILD_PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
           os: ubuntu-latest
         - # CentOS 8
           container:
diff --git a/ci/docker/centos8 b/ci/docker/centos8
index 0414838..fe059a1 100644
--- a/ci/docker/centos8
+++ b/ci/docker/centos8
@@ -12,7 +12,9 @@ RUN yum install -y \
 	git-daemon \
 	java-1.8.0-openjdk-headless \
 	sudo \
-	python39
+	python39 \
+	krb5-workstation \
+	krb5-libs
 
 FROM yum AS libssh2
 RUN cd /tmp && \