diff --git a/ocaml-general/install_ocaml_4.14_packages.sh b/ocaml-general/install_ocaml_4.14_packages.sh
index d84e4c7..ba443e6 100755
--- a/ocaml-general/install_ocaml_4.14_packages.sh
+++ b/ocaml-general/install_ocaml_4.14_packages.sh
@@ -1,7 +1,7 @@
 #!/bin/bash -xe
 
 packages=(
-  dune.3.17.2
+  dune.3.19.1
   merlin
   odoc.2.4.4
   ppxlib.0.35.0
@@ -25,15 +25,15 @@ packages=(
 )
 
 pins=(
-  dune 3.17.2
-  dune-action-plugin 3.17.2
-  dune-build-info 3.17.2
-  dune-configurator 3.17.2
-  dune-glob 3.17.2
-  dune-private-libs 3.17.2
-  dune-rpc 3.17.2
-  dune-rpc-lwt 3.17.2
-  dune-site 3.17.2
+  dune 3.19.1
+  dune-action-plugin 3.19.1
+  dune-build-info 3.19.1
+  dune-configurator 3.19.1
+  dune-glob 3.19.1
+  dune-private-libs 3.19.1
+  dune-rpc 3.19.1
+  dune-rpc-lwt 3.19.1
+  dune-site 3.19.1
 )
 
 echo "${pins[@]}" | xargs -n 2 opam pin -n add
diff --git a/ocaml-general/install_ocaml_5.1_packages.sh b/ocaml-general/install_ocaml_5.1_packages.sh
index 940d9d6..dc3a2a5 100755
--- a/ocaml-general/install_ocaml_5.1_packages.sh
+++ b/ocaml-general/install_ocaml_5.1_packages.sh
@@ -1,8 +1,8 @@
 #!/bin/bash -xe
 
 packages=(
-  dune.3.17.2
-  dune-build-info.3.17.2
+  dune.3.19.1
+  dune-build-info.3.19.1
   merlin
   odoc.2.4.4
   ppxlib.0.35.0
@@ -30,15 +30,15 @@ packages=(
 )
 
 pins=(
-  dune 3.17.2
-  dune-action-plugin 3.17.2
-  dune-build-info 3.17.2
-  dune-configurator 3.17.2
-  dune-glob 3.17.2
-  dune-private-libs 3.17.2
-  dune-rpc 3.17.2
-  dune-rpc-lwt 3.17.2
-  dune-site 3.17.2
+  dune 3.19.1
+  dune-action-plugin 3.19.1
+  dune-build-info 3.19.1
+  dune-configurator 3.19.1
+  dune-glob 3.19.1
+  dune-private-libs 3.19.1
+  dune-rpc 3.19.1
+  dune-rpc-lwt 3.19.1
+  dune-site 3.19.1
 )
 
 echo "${pins[@]}" | xargs -n 2 opam pin -n add
diff --git a/ocaml-general/install_ocaml_5.3_packages.sh b/ocaml-general/install_ocaml_5.3_packages.sh
index b31a5af..098db97 100755
--- a/ocaml-general/install_ocaml_5.3_packages.sh
+++ b/ocaml-general/install_ocaml_5.3_packages.sh
@@ -1,8 +1,8 @@
 #!/bin/bash -xe
 
 packages=(
-  dune.3.17.2
-  dune-build-info.3.17.2
+  dune.3.19.1
+  dune-build-info.3.19.1
   merlin
   odoc.2.4.4
   ppxlib.0.35.0
@@ -30,15 +30,15 @@ packages=(
 )
 
 pins=(
-  dune 3.17.2
-  dune-action-plugin 3.17.2
-  dune-build-info 3.17.2
-  dune-configurator 3.17.2
-  dune-glob 3.17.2
-  dune-private-libs 3.17.2
-  dune-rpc 3.17.2
-  dune-rpc-lwt 3.17.2
-  dune-site 3.17.2
+  dune 3.19.1
+  dune-action-plugin 3.19.1
+  dune-build-info 3.19.1
+  dune-configurator 3.19.1
+  dune-glob 3.19.1
+  dune-private-libs 3.19.1
+  dune-rpc 3.19.1
+  dune-rpc-lwt 3.19.1
+  dune-site 3.19.1
 )
 
 echo "${pins[@]}" | xargs -n 2 opam pin -n add