diff --git a/packages/aws-s3/aws-s3.4.4.0/opam b/packages/aws-s3/aws-s3.4.4.0/opam
index f1e5333467c..2ee5c4dc16b 100644
--- a/packages/aws-s3/aws-s3.4.4.0/opam
+++ b/packages/aws-s3/aws-s3.4.4.0/opam
@@ -12,12 +12,12 @@ build: [
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]
 depends: [
-  "ocaml" {>= "4.05.0"}
+  "ocaml" {>= "4.08.0"}
   "dune"
   "ocaml-inifiles"
   "digestif" {>= "0.7"}
   "ptime"
-  "uri"
+  "uri" {>= "1.3.1"}
   "xml-light"
   "yojson"
   "base" {< "v0.17.0"}
diff --git a/packages/aws-s3/aws-s3.4.4.1/opam b/packages/aws-s3/aws-s3.4.4.1/opam
index 5f9052d69dd..679558cfc1e 100644
--- a/packages/aws-s3/aws-s3.4.4.1/opam
+++ b/packages/aws-s3/aws-s3.4.4.1/opam
@@ -12,12 +12,12 @@ build: [
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]
 depends: [
-  "ocaml" {>= "4.05.0"}
+  "ocaml" {>= "4.08.0"}
   "dune"
   "ocaml-inifiles"
   "digestif" {>= "0.7"}
   "ptime"
-  "uri"
+  "uri" {>= "1.3.1"}
   "xml-light"
   "yojson"
   "base" {< "v0.17.0"}
diff --git a/packages/aws-s3/aws-s3.4.5.0/opam b/packages/aws-s3/aws-s3.4.5.0/opam
index f0b2fa84578..9548a7bdec9 100644
--- a/packages/aws-s3/aws-s3.4.5.0/opam
+++ b/packages/aws-s3/aws-s3.4.5.0/opam
@@ -12,12 +12,12 @@ build: [
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]
 depends: [
-  "ocaml" {>= "4.05.0"}
+  "ocaml" {>= "4.08.0"}
   "dune"
   "ocaml-inifiles"
   "digestif" {>= "0.7"}
   "ptime"
-  "uri"
+  "uri" {>= "1.3.1"}
   "xml-light"
   "yojson"
   "base" {< "v0.17.0"}
diff --git a/packages/aws-s3/aws-s3.4.5.1/opam b/packages/aws-s3/aws-s3.4.5.1/opam
index 85c51d64184..aef5ec65cc5 100644
--- a/packages/aws-s3/aws-s3.4.5.1/opam
+++ b/packages/aws-s3/aws-s3.4.5.1/opam
@@ -12,12 +12,12 @@ build: [
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
 ]
 depends: [
-  "ocaml" {>= "4.05.0"}
+  "ocaml" {>= "4.08.0"}
   "dune"
   "ocaml-inifiles"
   "digestif" {>= "0.7"}
   "ptime"
-  "uri"
+  "uri" {>= "1.3.1"}
   "base" {< "v0.17.0"}
   "ppx_protocol_conv_xml_light" {>= "5.0.0" & < "6.0.0"}
   "ppx_protocol_conv_json" {>= "5.0.0" & < "6.0.0"}