diff --git a/plugins/coroae/uwsgiplugin.py b/plugins/coroae/uwsgiplugin.py
index 6d35564e18..cf594ee8ac 100644
--- a/plugins/coroae/uwsgiplugin.py
+++ b/plugins/coroae/uwsgiplugin.py
@@ -9,7 +9,7 @@
         coroapi = p
 
 if not coroapi:
-    print "unable to find the Coro perl module !!!"
+    print("unable to find the Coro perl module !!!")
     sys.exit(1)
 
 NAME='coroae'
diff --git a/tests/gh-shared.sh b/tests/gh-shared.sh
index 368afaaeea..bad6dd043b 100755
--- a/tests/gh-shared.sh
+++ b/tests/gh-shared.sh
@@ -88,7 +88,7 @@ test_rack() {
     # the code assumes that ruby environment is activated by `rvm use`
     echo -e "${bldyel}================== TESTING $1 $2 =====================${txtrst}"
     echo -e "${bldyel}>>> Installing sinatra gem using gem${txtrst}"
-    sudo gem install sinatra || die
+    sudo gem install sinatra -v 2.2.2 || die
     echo -e "${bldyel}>>> Spawning uWSGI rack app${txtrst}"
     echo -en "${bldred}"
     ./uwsgi --master --plugin 0:$1 --http :8080 --exit-on-reload --touch-reload reload.txt --rack $2 --daemonize uwsgi.log
diff --git a/tests/travis.sh b/tests/travis.sh
index af5df9fa81..7b1eebb09c 100755
--- a/tests/travis.sh
+++ b/tests/travis.sh
@@ -98,7 +98,7 @@ test_rack() {
     # the code assumes that ruby environment is activated by `rvm use`
     echo -e "${bldyel}================== TESTING $1 $2 =====================${txtrst}"
     echo -e "${bldyel}>>> Installing sinatra gem using gem${txtrst}"
-    sudo gem install sinatra || die
+    sudo gem install sinatra -v 2.2.2 || die
     echo -e "${bldyel}>>> Spawning uWSGI rack app${txtrst}"
     echo -en "${bldred}"
     ./uwsgi --master --plugin 0:$1 --http :8080 --exit-on-reload --touch-reload reload.txt --rack $2 --daemonize uwsgi.log