diff --git a/packages/flow_parser/flow_parser.0.44.0/opam b/packages/flow_parser/flow_parser.0.44.0/opam
index acb1299ad44c..a7380fc665e9 100644
--- a/packages/flow_parser/flow_parser.0.44.0/opam
+++ b/packages/flow_parser/flow_parser.0.44.0/opam
@@ -21,5 +21,5 @@ depends: [
   "ocamlbuild" {build}
   "sedlex"
 ]
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
 dev-repo: "https://github.com/facebook/flow.git"
diff --git a/packages/flowtype/flowtype.0.49.1/opam b/packages/flowtype/flowtype.0.49.1/opam
index e8d2839e9627..bd9476212cfb 100644
--- a/packages/flowtype/flowtype.0.49.1/opam
+++ b/packages/flowtype/flowtype.0.49.1/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex"
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.50.0/opam b/packages/flowtype/flowtype.0.50.0/opam
index e8d2839e9627..bd9476212cfb 100644
--- a/packages/flowtype/flowtype.0.50.0/opam
+++ b/packages/flowtype/flowtype.0.50.0/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex"
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.51.0/opam b/packages/flowtype/flowtype.0.51.0/opam
index a8ae071edc5a..9f6c29fbf855 100644
--- a/packages/flowtype/flowtype.0.51.0/opam
+++ b/packages/flowtype/flowtype.0.51.0/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex" { >= "1.99.4" }
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.52.0/opam b/packages/flowtype/flowtype.0.52.0/opam
index a8ae071edc5a..9f6c29fbf855 100644
--- a/packages/flowtype/flowtype.0.52.0/opam
+++ b/packages/flowtype/flowtype.0.52.0/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex" { >= "1.99.4" }
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.53.0/opam b/packages/flowtype/flowtype.0.53.0/opam
index a8ae071edc5a..9f6c29fbf855 100644
--- a/packages/flowtype/flowtype.0.53.0/opam
+++ b/packages/flowtype/flowtype.0.53.0/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex" { >= "1.99.4" }
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.53.0/url b/packages/flowtype/flowtype.0.53.0/url
index e5468680be84..e3e9b5c0a661 100644
--- a/packages/flowtype/flowtype.0.53.0/url
+++ b/packages/flowtype/flowtype.0.53.0/url
@@ -1,2 +1,2 @@
 http: "https://github.com/facebook/flow/archive/v0.53.0.tar.gz"
-checksum: "03b9f7ddfbf358e7755bbd3646165bda"
+checksum: "415540241ed1efe2dabc5dff448452d6"
diff --git a/packages/flowtype/flowtype.0.56.0/opam b/packages/flowtype/flowtype.0.56.0/opam
index a8ae071edc5a..9f6c29fbf855 100644
--- a/packages/flowtype/flowtype.0.56.0/opam
+++ b/packages/flowtype/flowtype.0.56.0/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex" { >= "1.99.4" }
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.57.2/opam b/packages/flowtype/flowtype.0.57.2/opam
index a8ae071edc5a..9f6c29fbf855 100644
--- a/packages/flowtype/flowtype.0.57.2/opam
+++ b/packages/flowtype/flowtype.0.57.2/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex" { >= "1.99.4" }
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/flowtype/flowtype.0.58.0/opam b/packages/flowtype/flowtype.0.58.0/opam
index a8ae071edc5a..9f6c29fbf855 100644
--- a/packages/flowtype/flowtype.0.58.0/opam
+++ b/packages/flowtype/flowtype.0.58.0/opam
@@ -22,4 +22,4 @@ depends: [
   "sedlex" { >= "1.99.4" }
 ]
 
-available: [ocaml-version >= "4.03.0"]
+available: [ocaml-version >= "4.03.0" & ocaml-version < "4.06.0"]
diff --git a/packages/sedlex/sedlex.1.99.4/opam b/packages/sedlex/sedlex.1.99.4/opam
index 1018e338db02..8d0a90f7cac8 100644
--- a/packages/sedlex/sedlex.1.99.4/opam
+++ b/packages/sedlex/sedlex.1.99.4/opam
@@ -7,7 +7,7 @@ build: [ [make "all"]  [make "opt"] ]
 install: [make "install"]
 remove: [["ocamlfind" "remove" "sedlex"]]
 depends: ["ocamlfind" {build}
-          "ppx_tools_versioned"
+          "ppx_tools_versioned" {<"5.2.1"}
           "ocaml-migrate-parsetree"
           "gen"
          ]