diff --git a/Dockerfiles/work/Dockerfile-5.2 b/Dockerfiles/work/Dockerfile-5.2
index 3a78f2f..5f942ec 100644
--- a/Dockerfiles/work/Dockerfile-5.2
+++ b/Dockerfiles/work/Dockerfile-5.2
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-5.3 b/Dockerfiles/work/Dockerfile-5.3
index 15ab86b..5aea008 100644
--- a/Dockerfiles/work/Dockerfile-5.3
+++ b/Dockerfiles/work/Dockerfile-5.3
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-5.4 b/Dockerfiles/work/Dockerfile-5.4
index a496436..b41505e 100644
--- a/Dockerfiles/work/Dockerfile-5.4
+++ b/Dockerfiles/work/Dockerfile-5.4
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-5.5 b/Dockerfiles/work/Dockerfile-5.5
index 244c7a0..ec87b6b 100644
--- a/Dockerfiles/work/Dockerfile-5.5
+++ b/Dockerfiles/work/Dockerfile-5.5
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-5.6 b/Dockerfiles/work/Dockerfile-5.6
index 158f97a..6fc018a 100644
--- a/Dockerfiles/work/Dockerfile-5.6
+++ b/Dockerfiles/work/Dockerfile-5.6
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-7.0 b/Dockerfiles/work/Dockerfile-7.0
index 0f717e6..1acf5b7 100644
--- a/Dockerfiles/work/Dockerfile-7.0
+++ b/Dockerfiles/work/Dockerfile-7.0
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-7.1 b/Dockerfiles/work/Dockerfile-7.1
index b9b6b20..d903c5e 100644
--- a/Dockerfiles/work/Dockerfile-7.1
+++ b/Dockerfiles/work/Dockerfile-7.1
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-7.2 b/Dockerfiles/work/Dockerfile-7.2
index 1f11c62..23a8559 100644
--- a/Dockerfiles/work/Dockerfile-7.2
+++ b/Dockerfiles/work/Dockerfile-7.2
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/Dockerfiles/work/Dockerfile-7.3 b/Dockerfiles/work/Dockerfile-7.3
index 201c137..35974d1 100644
--- a/Dockerfiles/work/Dockerfile-7.3
+++ b/Dockerfiles/work/Dockerfile-7.3
@@ -91,6 +91,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \
diff --git a/build/ansible/DOCKERFILES/Dockerfile-work.j2 b/build/ansible/DOCKERFILES/Dockerfile-work.j2
index 1b6cbec..d205a66 100644
--- a/build/ansible/DOCKERFILES/Dockerfile-work.j2
+++ b/build/ansible/DOCKERFILES/Dockerfile-work.j2
@@ -106,6 +106,7 @@ RUN set -x \
 		subversion \
 		sudo \
 		tig \
+		tree \
 		vim \
 		w3m \
 		wget \