diff --git a/Gemfile.lock b/Gemfile.lock
index 809da1d..49f9fcd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
     bigdecimal (4.1.0)
     camertron-eprun (1.1.1)
     cldr-plurals-runtime-rb (1.1.0)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     diff-lcs (1.6.2)
     drb (2.2.3)
@@ -123,7 +123,7 @@ CHECKSUMS
   bigdecimal (4.1.0) sha256=6dc07767aa3dc456ccd48e7ae70a07b474e9afd7c5bc576f80bd6da5c8dd6cae
   camertron-eprun (1.1.1) sha256=9a8e337916445e62648f6a4f35d229302fc44c50549cc881bff1e296ccf9ce4b
   cldr-plurals-runtime-rb (1.1.0) sha256=2353875af89be9fac049c60891e973825b24a979eeef7274093c9ff5fd56dfa9
-  concurrent-ruby (1.3.6) sha256=6b56837e1e7e5292f9864f34b69c5a2cbc75c0cf5338f1ce9903d10fa762d5ab
+  concurrent-ruby (1.3.7) sha256=4412caec3a5ea2e5fdc52076724c071a81f2c0593d83b2ac8cbb8ca63b3151b0
   connection_pool (3.0.2) sha256=33fff5ba71a12d2aa26cb72b1db8bba2a1a01823559fb01d29eb74c286e62e0a
   diff-lcs (1.6.2) sha256=9ae0d2cba7d4df3075fe8cd8602a8604993efc0dfa934cff568969efb1909962
   drb (2.2.3) sha256=0b00d6fdb50995fe4a45dea13663493c841112e4068656854646f418fda13373