diff --git a/playbooks/groups/jenkins-cloud.yml b/playbooks/groups/jenkins-cloud.yml
index f85595b157..78e18e7e62 100644
--- a/playbooks/groups/jenkins-cloud.yml
+++ b/playbooks/groups/jenkins-cloud.yml
@@ -100,76 +100,76 @@
              sha256sum={{ item.sha }}
     with_items:
         - name: bazaar
-          version: 1.22
+          version: '1.22'
           sha: d7ff0987c96e2a694257ecf897ceee376908c5f94abfd1d5efc32482e4d54141
         - name: chucknorris
-          version: 0.5
+          version: '0.5'
           sha: bd9df0507008255ad2ed046368d10a4d039a6cbcfefb53c71c1768cc0dcbf65b
         - name: cobertura
-          version: 1.9.5
+          version: '1.9.5'
           sha: a76bc1524efc5ba05672638001c0e951edd2a853d222efcfb035e02169e4252a
         - name: cvs
-          version: 2.12
+          version: '2.12'
           sha: 6e6dfd35e8501bf5f84a9d43d210db61165ce51a606327fc81f2efc5208478ba
         - name: external-monitor-job
-          version: 1.2
+          version: '1.2'
           sha: 8dd2644271d0138839490342833e9ff7f82772038f673f5ac6220193c587747d
         - name: git
-          version: 2.2.5
+          version: '2.2.5'
           sha: 92c51f33fbcbe858d05b40083d3c628f03b6ba5218626ee22db9a367947b7670
         - name: git-client
-          version: 1.10.1
+          version: '1.10.1'
           sha: 19de6979a1360bc022bba9e061c4f946e51f252912234453d7f70af62d089e65
         - name: instant-messaging
-          version: 1.29
+          version: '1.29'
           sha: b8fc1bff0c6f899f60d2d02b4ed321baf045fc0e5d4e0c3676d99197f94a8e5c
         - name: ldap
-          version: 1.8
+          version: '1.8'
           sha: 491905ec3675b6a5acf2098722c121732801fd6210e6ff54bc99d213b5b8ee58
         - name: maven-plugin
-          version: 2.6
+          version: '2.6'
           sha: 3a3a1e1d7e3416ea85ec09f953f5b8e37d943ca55b8e4224bbcfd702bed72fa5
         - name: mercurial
           version: '1.50'
           sha: 934a6bd38e2109b97c915d80fdb6abc74a8ef4aff882b94ef0b1a274919ea407
         - name: openid
-          version: 2.1
+          version: '2.1'
           sha: 7c0d2cd72fd2554a60a01fe6dc169c994487d6b228771b42d42c49559d388c4a
         - name: python
-          version: 1.2
+          version: '1.2'
           sha: e3358a945f21b84a8156237b0d621815a7822322e1180ae1e66d10798aaf1f56
         - name: scm-api
-          version: 0.2
+          version: '0.2'
           sha: cc856d8dc8b951cf9a195baa2bf7bbff0d12368534a6b973e43e2909141eff3f
         - name: ssh-agent
-          version: 1.4.1
+          version: '1.4.1'
           sha: ae8227bf219e96a4d76f36dc6d6e652ddd0209e8d9c4cf4483a07858d707ce6e
         - name: subversion
-          version: 2.2
+          version: '2.2'
           sha: 221ed61c8e4ef959bb316ea93d188e19c8f980edac0f1e45a6cd8d7e13808b51
         - name: translation
-          version: 1.11
+          version: '1.11'
           sha: 4d88b8d74ade119cef76827bd385693447fa68fa18fd1bfc8806aff9d931f00e
         - name: violations
-          version: 0.7.11
+          version: '0.7.11'
           sha: f8eacb53eb01f83f3702009a41cef89e520a72933671ac1ee9154d88bde2d67a
         - name: xunit
           version: '1.90'
           sha: 2beade6d7769db9d52ff147c7a491cd1e7c53b01c07b9eeb44daa27ee75b25ca
         - name: multiple-scms
-          version: 0.3
+          version: '0.3'
           sha: e79d7e855ffe0ad060d11ae1ce0b39f68e7fa031c6e831f60fe33e5ddb3392ac
         - name: credentials
-          version: 1.16.1
+          version: '1.16.1'
           sha: ae7e8ab317c03355390135d5eec683db7dceb5d513717d9fab624238a5ffe2bf
         - name: mailer
-          version: 1.11
+          version: '1.11'
           sha: 9217be3008f323ac0535d4fb34118ed2681d6170d2d7de2f38b99ba331c4a256
         - name: matrix-auth
-          version: 1.2
+          version: '1.2'
           sha: a773c2fd6b2d70b2ff1c0466308290326d97f05b6fa72a217922997750aef39a
         - name: javadoc
-          version: 1.2
+          version: '1.2'
           sha: 4bde54b288b24d5deaa7f809df78373d3b37d683d4693ab42278f019252c86b9
     notify:
       - restart jenkins