diff --git a/.flowconfig b/.flowconfig
index fa38fd8..3cf493d 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -43,4 +43,4 @@ suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
 unsafe.enable_getters_and_setters=true
 
 [version]
-0.41.0
+0.39.0
diff --git a/package.json b/package.json
index df71f91..5a4afce 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "eslint-config-keystone": "^3.0.0",
     "eslint-config-keystone-react": "^1.0.0",
     "eslint-plugin-react": "^6.10.0",
-    "flow-bin": "^0.41.0",
+    "flow-bin": "^0.39.0",
     "flow-typed": "^2.0.0",
     "jest": "18.1.0",
     "mockdate": "^2.0.1",
diff --git a/yarn.lock b/yarn.lock
index d8b4557..98b6dac 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1801,9 +1801,9 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-flow-bin@^0.41.0:
-  version "0.41.0"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.41.0.tgz#8badac9a19da45004997e599bd316518db489b2e"
+flow-bin@^0.39.0:
+  version "0.39.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.39.0.tgz#b1012a14460df1aa79d3a728e10f93c6944226d0"
 
 flow-typed@^2.0.0:
   version "2.0.0"