diff --git a/Dockerfile.builder b/Dockerfile.builder
index 7a648d1..daae229 100644
--- a/Dockerfile.builder
+++ b/Dockerfile.builder
@@ -5,8 +5,8 @@ ENV LANG=en_US.utf8
 ARG USE_GO_VERSION_FROM_WEBSITE=0
 
 # Some packages might seem weird but they are required by the RVM installer.
-RUN yum install epel-release --enablerepo=extras -y \
-    && yum --enablerepo=centosplus --enablerepo=epel-testing install -y \
+RUN yum install epel-release -y \
+    && yum --enablerepo=centosplus --enablerepo=epel install -y \
       findutils \
       git \
       $(test "$USE_GO_VERSION_FROM_WEBSITE" != 1 && echo "golang") \
diff --git a/Makefile b/Makefile
index c0a8144..fd1b4d9 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ endif
 GIT_BIN := $(shell command -v $(GIT_BIN_NAME) 2> /dev/null)
 DEP_BIN_DIR := $(TMP_PATH)/bin
 DEP_BIN := $(DEP_BIN_DIR)/$(DEP_BIN_NAME)
-DEP_VERSION=v0.4.1
+DEP_VERSION=v0.5.0
 GO_BIN := $(shell command -v $(GO_BIN_NAME) 2> /dev/null)
 DOCKER_BIN := $(shell command -v $(DOCKER_BIN_NAME) 2> /dev/null)
 
@@ -143,12 +143,12 @@ ifeq ($(UNAME_S),Darwin)
 	@curl -L -s https://github.com/golang/dep/releases/download/$(DEP_VERSION)/dep-darwin-amd64 -o $(DEP_BIN) 
 	@cd $(DEP_BIN_DIR) && \
 	curl -L -s https://github.com/golang/dep/releases/download/$(DEP_VERSION)/dep-darwin-amd64.sha256 -o $(DEP_BIN_DIR)/dep-darwin-amd64.sha256 && \
-	echo "1544afdd4d543574ef8eabed343d683f7211202a65380f8b32035d07ce0c45ef  dep" > dep-darwin-amd64.sha256 && \
+	echo "1a7bdb0d6c31ecba8b3fd213a1170adf707657123e89dff234871af9e0498be2  dep" > dep-darwin-amd64.sha256 && \
 	shasum -a 256 --check dep-darwin-amd64.sha256
 else
 	@curl -L -s https://github.com/golang/dep/releases/download/$(DEP_VERSION)/dep-linux-amd64 -o $(DEP_BIN)
 	@cd $(DEP_BIN_DIR) && \
-	echo "31144e465e52ffbc0035248a10ddea61a09bf28b00784fd3fdd9882c8cbb2315  dep" > checksum && \
+	echo "287b08291e14f1fae8ba44374b26a2b12eb941af3497ed0ca649253e21ba2f83  dep" > checksum && \
 	sha256sum -c checksum
 endif
 	@chmod +x $(DEP_BIN)