diff --git a/.travis.yml b/.travis.yml
index 0c4086830..b35bee642 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -89,7 +89,7 @@ before_script:
     - unset CC; unset CXX
     - mkdir -p depends/SDKs depends/sdk-sources
     - if [ "$RUN_TESTS" = "true" ]; then qa/pull-tester/install-deps.sh; fi
-    - if [ -n "$OSX_SDK" -a ! -f depends/sdk-sources/MacOSX${OSX_SDK}.sdk.tar.gz ]; then wget $SDK_URL/MacOSX${OSX_SDK}.sdk.tar.gz -O depends/sdk-sources/MacOSX${OSX_SDK}.sdk.tar.gz; fi
+    - if [ -n "$OSX_SDK" -a ! -f depends/sdk-sources/MacOSX${OSX_SDK}.sdk.tar.gz ]; then curl --location --fail $SDK_URL/MacOSX${OSX_SDK}.sdk.tar.gz -o depends/sdk-sources/MacOSX${OSX_SDK}.sdk.tar.gz; fi
     - if [ -n "$OSX_SDK" -a -f depends/sdk-sources/MacOSX${OSX_SDK}.sdk.tar.gz ]; then tar -C depends/SDKs -xf depends/sdk-sources/MacOSX${OSX_SDK}.sdk.tar.gz; fi
     - make $MAKEJOBS -C depends HOST=$HOST $DEP_OPTS
 script:
diff --git a/depends/builders/darwin.mk b/depends/builders/darwin.mk
index b366460e6..cedbddc57 100644
--- a/depends/builders/darwin.mk
+++ b/depends/builders/darwin.mk
@@ -7,7 +7,7 @@ build_darwin_OTOOL: = $(shell xcrun -f otool)
 build_darwin_NM: = $(shell xcrun -f nm)
 build_darwin_INSTALL_NAME_TOOL:=$(shell xcrun -f install_name_tool)
 build_darwin_SHA256SUM = shasum -a 256
-build_darwin_DOWNLOAD = curl --connect-timeout $(DOWNLOAD_CONNECT_TIMEOUT) --retry $(DOWNLOAD_RETRIES) -L -o
+build_darwin_DOWNLOAD = curl --location --fail --connect-timeout $(DOWNLOAD_CONNECT_TIMEOUT) --retry $(DOWNLOAD_RETRIES) -L -o
 
 #darwin host on darwin builder. overrides darwin host preferences.
 darwin_CC=$(shell xcrun -f clang) -mmacosx-version-min=$(OSX_MIN_VERSION)
diff --git a/depends/builders/linux.mk b/depends/builders/linux.mk
index 98d0e9de3..d6a304e4b 100644
--- a/depends/builders/linux.mk
+++ b/depends/builders/linux.mk
@@ -1,2 +1,2 @@
 build_linux_SHA256SUM = sha256sum
-build_linux_DOWNLOAD = wget --timeout=$(DOWNLOAD_CONNECT_TIMEOUT) --tries=$(DOWNLOAD_RETRIES) -nv -O
+build_linux_DOWNLOAD = curl --location --fail --connect-timeout $(DOWNLOAD_CONNECT_TIMEOUT) --retry $(DOWNLOAD_RETRIES) -L -o
diff --git a/depends/packages/dbus.mk b/depends/packages/dbus.mk
index 8ac9ab742..cb845ef62 100644
--- a/depends/packages/dbus.mk
+++ b/depends/packages/dbus.mk
@@ -1,6 +1,6 @@
 package=dbus
 $(package)_version=1.8.6
-$(package)_download_path=http://dbus.freedesktop.org/releases/dbus
+$(package)_download_path=https://dbus.freedesktop.org/releases/dbus
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
 $(package)_sha256_hash=eded83ca007b719f32761e60fd8b9ffd0f5796a4caf455b01b5a5ef740ebd23f
 $(package)_dependencies=expat
diff --git a/depends/packages/native_ccache.mk b/depends/packages/native_ccache.mk
index 3226e89a6..f26a28290 100644
--- a/depends/packages/native_ccache.mk
+++ b/depends/packages/native_ccache.mk
@@ -1,6 +1,6 @@
 package=native_ccache
 $(package)_version=3.1.9
-$(package)_download_path=http://samba.org/ftp/ccache
+$(package)_download_path=https://www.samba.org/ftp/ccache
 $(package)_file_name=ccache-$($(package)_version).tar.bz2
 $(package)_sha256_hash=04d3e2e438ac8d4cc4b110b68cdd61bd59226c6588739a4a386869467f5ced7c
 
diff --git a/depends/packages/native_protobuf.mk b/depends/packages/native_protobuf.mk
index ed1a771f0..047dee4f7 100644
--- a/depends/packages/native_protobuf.mk
+++ b/depends/packages/native_protobuf.mk
@@ -1,6 +1,6 @@
 package=native_protobuf
 $(package)_version=2.5.0
-$(package)_download_path=https://protobuf.googlecode.com/files
+$(package)_download_path=https://github.com/google/protobuf/releases/download/v$($(package)_version)
 $(package)_file_name=protobuf-$($(package)_version).tar.bz2
 $(package)_sha256_hash=13bfc5ae543cf3aa180ac2485c0bc89495e3ae711fc6fab4f8ffe90dfb4bb677