diff --git a/.travis.yml b/.travis.yml
index 314afb9..dcfdd49 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,6 +28,26 @@ matrix:
       compiler: g++
       env: TOOLSET=gcc CXXSTD=03,11
 
+    - os: linux
+      compiler: g++-4.4
+      env: TOOLSET=gcc-4.4 CXXSTD=98,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.4
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.6
+      env: TOOLSET=gcc-4.6 CXXSTD=03,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.6
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       compiler: g++-5
       env: TOOLSET=gcc-5 CXXSTD=03,11