diff --git a/.travis/before-install-linux-cpp.sh b/.travis/before-install-linux-cpp.sh
index c5bf43614..c496c2cbd 100755
--- a/.travis/before-install-linux-cpp.sh
+++ b/.travis/before-install-linux-cpp.sh
@@ -3,6 +3,4 @@
 set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-sudo add-apt-repository ppa:fkrull/deadsnakes -y
-sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
diff --git a/.travis/before-install-linux-csharp.sh b/.travis/before-install-linux-csharp.sh
index 048d147d7..fc8cbcec2 100755
--- a/.travis/before-install-linux-csharp.sh
+++ b/.travis/before-install-linux-csharp.sh
@@ -3,8 +3,6 @@
 set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-sudo add-apt-repository ppa:fkrull/deadsnakes -y
-sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
 echo "deb http://download.mono-project.com/repo/debian wheezy/snapshots/3.12.1 main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
 sudo apt-get install -qq mono-complete
diff --git a/.travis/before-install-linux-go.sh b/.travis/before-install-linux-go.sh
index 96a763927..71adcfadd 100755
--- a/.travis/before-install-linux-go.sh
+++ b/.travis/before-install-linux-go.sh
@@ -3,8 +3,6 @@
 set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-sudo add-apt-repository ppa:fkrull/deadsnakes -y
-sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
 eval "$(sudo gimme 1.7.3)"
 ( go version ; go env ) || true
diff --git a/.travis/before-install-linux-java.sh b/.travis/before-install-linux-java.sh
index c5bf43614..c496c2cbd 100755
--- a/.travis/before-install-linux-java.sh
+++ b/.travis/before-install-linux-java.sh
@@ -3,6 +3,4 @@
 set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-sudo add-apt-repository ppa:fkrull/deadsnakes -y
-sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
diff --git a/.travis/before-install-linux-javascript.sh b/.travis/before-install-linux-javascript.sh
index 42bea10fa..9d647e475 100755
--- a/.travis/before-install-linux-javascript.sh
+++ b/.travis/before-install-linux-javascript.sh
@@ -3,7 +3,6 @@
 set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-sudo add-apt-repository ppa:fkrull/deadsnakes -y
 sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
 sudo apt-get install -qq nodejs
diff --git a/.travis/before-install-linux-python2.sh b/.travis/before-install-linux-python2.sh
index 79ae76f6e..d79e21610 100755
--- a/.travis/before-install-linux-python2.sh
+++ b/.travis/before-install-linux-python2.sh
@@ -3,7 +3,5 @@
 set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
-sudo add-apt-repository ppa:fkrull/deadsnakes -y
-sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
 python --version
diff --git a/.travis/before-install-linux-python3.sh b/.travis/before-install-linux-python3.sh
index abfce1d81..23685d75a 100755
--- a/.travis/before-install-linux-python3.sh
+++ b/.travis/before-install-linux-python3.sh
@@ -4,7 +4,6 @@ set -euo pipefail
 
 sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 sudo add-apt-repository ppa:fkrull/deadsnakes -y
-sudo add-apt-repository ppa:rwky/nodejs -y
 sudo apt-get update -qq
 sudo apt-get install -qq python3.5
 python3 --version