diff --git a/.rvmrc b/.rvmrc
index fb7a8f2f0c9a8fd74e813fbbc96e4a3cdfe5f721..59db890fd500202d647648c470a1f76775bed4df 100644
--- a/.rvmrc
+++ b/.rvmrc
@@ -5,6 +5,6 @@ else
   rvm --create use ree-1.8.7-2011.03@diaspora
 fi
 
-if [ "$(gem --version)" != "1.8.12" ]; then
-  rvm rubygems 1.8.12
+if [ "$(gem --version)" != "1.8.15" ]; then
+  rvm rubygems 1.8.15
 fi
diff --git a/script/ci/before_install.sh b/script/ci/before_install.sh
index f2992db232dd98714b0924ff37ac3cdf3f74e9b1..f60237ee76a888a7928301c72a45ea7bf531f4be 100755
--- a/script/ci/before_install.sh
+++ b/script/ci/before_install.sh
@@ -1,9 +1,9 @@
 #!/bin/bash
 
 # Ensure known RubyGems version
-if [ "$(gem --version)" != "1.8.12" ]; then
+if [ "$(gem --version)" != "1.8.15" ]; then
   echo "RubyGems version is $(gem --version). Changing..."
-  rvm rubygems 1.8.12
+  rvm rubygems 1.8.15
   echo "Changed RubyGems version to $(gem --version)."
 fi