diff --git a/collection-fortress.yaml b/collection-fortress.yaml
index 5a54f7a4..99dc48f5 100644
--- a/collection-fortress.yaml
+++ b/collection-fortress.yaml
@@ -11,19 +11,19 @@ repositories:
   ign-fuel-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-fuel-tools
-    version: main
+    version: ign-fuel-tools7
   ign-gazebo:
     type: git
     url: https://github.com/ignitionrobotics/ign-gazebo
-    version: main
+    version: ign-gazebo6
   ign-gui:
     type: git
     url: https://github.com/ignitionrobotics/ign-gui
-    version: main
+    version: ign-gui6
   ign-launch:
     type: git
     url: https://github.com/ignitionrobotics/ign-launch
-    version: main
+    version: ign-launch5
   ign-math:
     type: git
     url: https://github.com/ignitionrobotics/ign-math
@@ -31,11 +31,11 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-physics:
     type: git
     url: https://github.com/ignitionrobotics/ign-physics
-    version: main
+    version: ign-physics5
   ign-plugin:
     type: git
     url: https://github.com/ignitionrobotics/ign-plugin
@@ -43,11 +43,11 @@ repositories:
   ign-rendering:
     type: git
     url: https://github.com/ignitionrobotics/ign-rendering
-    version: main
+    version: ign-rendering6
   ign-sensors:
     type: git
     url: https://github.com/ignitionrobotics/ign-sensors
-    version: main
+    version: ign-sensors6
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
@@ -55,7 +55,7 @@ repositories:
   ign-transport:
     type: git
     url: https://github.com/ignitionrobotics/ign-transport
-    version: main
+    version: ign-transport11
   ign-utils:
     type: git
     url: https://github.com/ignitionrobotics/ign-utils
@@ -63,4 +63,4 @@ repositories:
   sdformat:
     type: git
     url: https://github.com/osrf/sdformat
-    version: main
+    version: sdf12
diff --git a/ign-fuel-tools7.yaml b/ign-fuel-tools7.yaml
index fb5695da..09083f67 100644
--- a/ign-fuel-tools7.yaml
+++ b/ign-fuel-tools7.yaml
@@ -11,7 +11,7 @@ repositories:
   ign-fuel-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-fuel-tools
-    version: main
+    version: ign-fuel-tools7
   ign-math:
     type: git
     url: https://github.com/ignitionrobotics/ign-math
@@ -19,7 +19,7 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
diff --git a/ign-gazebo6.yaml b/ign-gazebo6.yaml
index 1443c68a..4070dfb5 100644
--- a/ign-gazebo6.yaml
+++ b/ign-gazebo6.yaml
@@ -11,15 +11,15 @@ repositories:
   ign-fuel-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-fuel-tools
-    version: main
+    version: ign-fuel-tools7
   ign-gazebo:
     type: git
     url: https://github.com/ignitionrobotics/ign-gazebo
-    version: main
+    version: ign-gazebo6
   ign-gui:
     type: git
     url: https://github.com/ignitionrobotics/ign-gui
-    version: main
+    version: ign-gui6
   ign-math:
     type: git
     url: https://github.com/ignitionrobotics/ign-math
@@ -27,11 +27,11 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-physics:
     type: git
     url: https://github.com/ignitionrobotics/ign-physics
-    version: main
+    version: ign-physics5
   ign-plugin:
     type: git
     url: https://github.com/ignitionrobotics/ign-plugin
@@ -39,11 +39,11 @@ repositories:
   ign-rendering:
     type: git
     url: https://github.com/ignitionrobotics/ign-rendering
-    version: main
+    version: ign-rendering6
   ign-sensors:
     type: git
     url: https://github.com/ignitionrobotics/ign-sensors
-    version: main
+    version: ign-sensors6
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
@@ -51,7 +51,7 @@ repositories:
   ign-transport:
     type: git
     url: https://github.com/ignitionrobotics/ign-transport
-    version: main
+    version: ign-transport11
   ign-utils:
     type: git
     url: https://github.com/ignitionrobotics/ign-utils
@@ -59,4 +59,4 @@ repositories:
   sdformat:
     type: git
     url: https://github.com/osrf/sdformat
-    version: main
+    version: sdf12
diff --git a/ign-gui6.yaml b/ign-gui6.yaml
index e00c4982..c30dfbd0 100644
--- a/ign-gui6.yaml
+++ b/ign-gui6.yaml
@@ -11,7 +11,7 @@ repositories:
   ign-gui:
     type: git
     url: https://github.com/ignitionrobotics/ign-gui
-    version: main
+    version: ign-gui6
   ign-math:
     type: git
     url: https://github.com/ignitionrobotics/ign-math
@@ -19,7 +19,7 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-plugin:
     type: git
     url: https://github.com/ignitionrobotics/ign-plugin
@@ -27,7 +27,7 @@ repositories:
   ign-rendering:
     type: git
     url: https://github.com/ignitionrobotics/ign-rendering
-    version: main
+    version: ign-rendering6
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
@@ -35,7 +35,7 @@ repositories:
   ign-transport:
     type: git
     url: https://github.com/ignitionrobotics/ign-transport
-    version: main
+    version: ign-transport11
   ign-utils:
     type: git
     url: https://github.com/ignitionrobotics/ign-utils
diff --git a/ign-launch5.yaml b/ign-launch5.yaml
index 5a54f7a4..99dc48f5 100644
--- a/ign-launch5.yaml
+++ b/ign-launch5.yaml
@@ -11,19 +11,19 @@ repositories:
   ign-fuel-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-fuel-tools
-    version: main
+    version: ign-fuel-tools7
   ign-gazebo:
     type: git
     url: https://github.com/ignitionrobotics/ign-gazebo
-    version: main
+    version: ign-gazebo6
   ign-gui:
     type: git
     url: https://github.com/ignitionrobotics/ign-gui
-    version: main
+    version: ign-gui6
   ign-launch:
     type: git
     url: https://github.com/ignitionrobotics/ign-launch
-    version: main
+    version: ign-launch5
   ign-math:
     type: git
     url: https://github.com/ignitionrobotics/ign-math
@@ -31,11 +31,11 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-physics:
     type: git
     url: https://github.com/ignitionrobotics/ign-physics
-    version: main
+    version: ign-physics5
   ign-plugin:
     type: git
     url: https://github.com/ignitionrobotics/ign-plugin
@@ -43,11 +43,11 @@ repositories:
   ign-rendering:
     type: git
     url: https://github.com/ignitionrobotics/ign-rendering
-    version: main
+    version: ign-rendering6
   ign-sensors:
     type: git
     url: https://github.com/ignitionrobotics/ign-sensors
-    version: main
+    version: ign-sensors6
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
@@ -55,7 +55,7 @@ repositories:
   ign-transport:
     type: git
     url: https://github.com/ignitionrobotics/ign-transport
-    version: main
+    version: ign-transport11
   ign-utils:
     type: git
     url: https://github.com/ignitionrobotics/ign-utils
@@ -63,4 +63,4 @@ repositories:
   sdformat:
     type: git
     url: https://github.com/osrf/sdformat
-    version: main
+    version: sdf12
diff --git a/ign-msgs8.yaml b/ign-msgs8.yaml
index e28abe15..e8e3457b 100644
--- a/ign-msgs8.yaml
+++ b/ign-msgs8.yaml
@@ -11,7 +11,7 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
diff --git a/ign-physics5.yaml b/ign-physics5.yaml
index 0f8c6bb3..c8890f59 100644
--- a/ign-physics5.yaml
+++ b/ign-physics5.yaml
@@ -15,7 +15,7 @@ repositories:
   ign-physics:
     type: git
     url: https://github.com/ignitionrobotics/ign-physics
-    version: main
+    version: ign-physics5
   ign-plugin:
     type: git
     url: https://github.com/ignitionrobotics/ign-plugin
@@ -27,4 +27,4 @@ repositories:
   sdformat:
     type: git
     url: https://github.com/osrf/sdformat
-    version: main
+    version: sdf12
diff --git a/ign-rendering6.yaml b/ign-rendering6.yaml
index ecb97cf3..154dc3cc 100644
--- a/ign-rendering6.yaml
+++ b/ign-rendering6.yaml
@@ -19,7 +19,7 @@ repositories:
   ign-rendering:
     type: git
     url: https://github.com/ignitionrobotics/ign-rendering
-    version: main
+    version: ign-rendering6
   ign-utils:
     type: git
     url: https://github.com/ignitionrobotics/ign-utils
diff --git a/ign-sensors6.yaml b/ign-sensors6.yaml
index 2ac077c7..3b4ca883 100644
--- a/ign-sensors6.yaml
+++ b/ign-sensors6.yaml
@@ -15,7 +15,7 @@ repositories:
   ign-msgs:
     type: git
     url: https://github.com/ignitionrobotics/ign-msgs
-    version: main
+    version: ign-msgs8
   ign-plugin:
     type: git
     url: https://github.com/ignitionrobotics/ign-plugin
@@ -23,15 +23,15 @@ repositories:
   ign-rendering:
     type: git
     url: https://github.com/ignitionrobotics/ign-rendering
-    version: main
+    version: ign-rendering6
   ign-sensors:
     type: git
     url: https://github.com/ignitionrobotics/ign-sensors
-    version: main
+    version: ign-sensors6
   ign-transport:
     type: git
     url: https://github.com/ignitionrobotics/ign-transport
-    version: main
+    version: ign-transport11
   ign-tools:
     type: git
     url: https://github.com/ignitionrobotics/ign-tools
@@ -43,4 +43,4 @@ repositories:
   sdformat:
     type: git
     url: https://github.com/osrf/sdformat
-    version: main
+    version: sdf12
diff --git a/ign-transport11.yaml b/ign-transport11.yaml
index 7b178708..ffe48e31 100644
--- a/ign-transport11.yaml
+++ b/ign-transport11.yaml
@@ -19,7 +19,7 @@ repositories:
   ign-transport:
     type: git
     url: https://github.com/ignitionrobotics/ign-transport
-    version: main
+    version: ign-transport11
   ign-utils:
     type: git
     url: https://github.com/ignitionrobotics/ign-utils
diff --git a/sdformat12.yaml b/sdformat12.yaml
index 62041437..e77b203e 100644
--- a/sdformat12.yaml
+++ b/sdformat12.yaml
@@ -19,4 +19,4 @@ repositories:
   sdformat:
     type: git
     url: https://github.com/osrf/sdformat
-    version: main
+    version: sdf12