diff --git a/fixtures/util/override_buildpack/override.yml b/fixtures/util/override_buildpack/override.yml
index 9dc5c1ebf..3b7d7b919 100644
--- a/fixtures/util/override_buildpack/override.yml
+++ b/fixtures/util/override_buildpack/override.yml
@@ -6,5 +6,5 @@ ruby:
     file: BUILDPACK_DIR/node.tgz
     sha256: 062d906c87839d03b243e2821e10653c89b4c92878bfe2bf995dec231e117bfc
     cf_stacks:
-    - cflinuxfs3
     - cflinuxfs4
+    - cflinuxfs5
diff --git a/manifest.yml b/manifest.yml
index 1f02c6c69..a22643de2 100644
--- a/manifest.yml
+++ b/manifest.yml
@@ -30,7 +30,6 @@ dependencies:
   cf_stacks:
   - cflinuxfs4
   - cflinuxfs5
-  - cflinuxfs3
   source: https://github.com/rubygems/rubygems/tree/master/bundlertree/v2.6.5
   source_sha256: 9d0eef5779ee569c43f317484f034081f58e9cf7529af6cd59d15266e46a72a3
 - name: bundler
@@ -42,14 +41,6 @@ dependencies:
   - cflinuxfs5
   source: https://github.com/rubygems/rubygems/tree/master/bundlertree/v2.7.2
   source_sha256: 1decaf9e2e1acb91b6586a2925c8f3f6da2334a82731a62ff2ded1b83c283871
-- name: jruby
-  version: 9.4.8.0
-  uri: https://buildpacks.cloudfoundry.org/dependencies/jruby/jruby_9.4.8.0-ruby-3.1_linux_x64_cflinuxfs3_70896f95.tgz
-  sha256: 70896f95619b2244e68342aae3e596792bcd3d748333084640d1d7ea56cb1905
-  cf_stacks:
-  - cflinuxfs3
-  source: https://s3.amazonaws.com/jruby.org/downloads/9.4.8.0/jruby-src-9.4.8.0.tar.gz
-  source_sha256: d1a7abb31bd02335cf0e26e3de54e2f82232044c0b6e59bd336a00cab8e1e211
 - name: jruby
   version: 9.4.15.0
   uri: https://buildpacks.cloudfoundry.org/dependencies/jruby/jruby_9.4.15.0-ruby-3.1_linux_x64_cflinuxfs4_39e32ac7.tgz
@@ -66,14 +57,6 @@ dependencies:
   - cflinuxfs5
   source: https://github.com/jruby/jruby/releases/download/9.4.15.0/jruby-src-9.4.15.0.zip
   source_sha256: b7d3b5792c968fcb1b211bf759a82d857f26b671e3ff312b31af3a72c3ebce6c
-- name: node
-  version: 20.16.0
-  uri: https://buildpacks.cloudfoundry.org/dependencies/node/node_20.16.0_linux_x64_cflinuxfs3_62df07a7.tgz
-  sha256: 62df07a7204df3504e2e4c6fe422fbbde88625085a6df04c665660d49afd1c42
-  cf_stacks:
-  - cflinuxfs3
-  source: https://nodejs.org/dist/v20.16.0/node-v20.16.0.tar.gz
-  source_sha256: 8f24bf9abe455a09ab30f9ae8edda1e945ed678a4b1c3b07ee0f901fdc0ff4fd
 - name: node
   version: 24.22.1
   uri: https://buildpacks.cloudfoundry.org/dependencies/node/node_24.22.1_linux_x64_cflinuxfs4_e062d949.tgz
@@ -103,26 +86,9 @@ dependencies:
   uri: https://java-buildpack.cloudfoundry.org/openjdk-jdk/bionic/x86_64/openjdk-jdk-1.8.0_242-bionic.tar.gz
   sha256: dcb9fea2fc3a9b003031874ed17aa5d5a7ebbe397b276ecc8c814633003928fe
   cf_stacks:
-  - cflinuxfs3
   - cflinuxfs4
   source: https://java-buildpack.cloudfoundry.org/openjdk-jdk/bionic/x86_64/openjdk-jdk-1.8.0_242-bionic.tar.gz
   source_sha256: dcb9fea2fc3a9b003031874ed17aa5d5a7ebbe397b276ecc8c814633003928fe
-- name: ruby
-  version: 3.3.8
-  uri: https://buildpacks.cloudfoundry.org/dependencies/ruby/ruby_3.3.8_linux_x64_cflinuxfs3_96ff3869.tgz
-  sha256: 96ff386969ded747bdfd9a8488fba229a43488c64249653fba4fa4fb078933b5
-  cf_stacks:
-  - cflinuxfs3
-  source: https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.8.tar.gz
-  source_sha256: 5ae28a87a59a3e4ad66bc2931d232dbab953d0aa8f6baf3bc4f8f80977c89cab
-- name: ruby
-  version: 3.3.9
-  uri: https://buildpacks.cloudfoundry.org/dependencies/ruby/ruby_3.3.9_linux_x64_cflinuxfs3_8387680f.tgz
-  sha256: 8387680f143c7f7d037612fe52c46269c8ebf4af350c3c27c79496bc4b8d77d8
-  cf_stacks:
-  - cflinuxfs3
-  source: https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.9.tar.gz
-  source_sha256: d1991690a4e17233ec6b3c7844c1e1245c0adce3e00d713551d0458467b727b1
 - name: ruby
   version: 3.3.11
   uri: https://buildpacks.cloudfoundry.org/dependencies/ruby/ruby_3.3.11_linux_x64_cflinuxfs4_598ef388.tgz
@@ -155,22 +121,6 @@ dependencies:
   - cflinuxfs5
   source: https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.13.tar.gz
   source_sha256: 4cae72e971bd1cdb20ca87d299111182417c5276c162de8ead0ab0531426cd61
-- name: ruby
-  version: 3.4.4
-  uri: https://buildpacks.cloudfoundry.org/dependencies/ruby/ruby_3.4.4_linux_x64_cflinuxfs3_5ba66089.tgz
-  sha256: 5ba660891dc3208b04e221bb78d8574690a7df930212f6ef8c3719c8196f6932
-  cf_stacks:
-  - cflinuxfs3
-  source: https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.4.tar.gz
-  source_sha256: a0597bfdf312e010efd1effaa8d7f1d7833146fdc17950caa8158ffa3dcbfa85
-- name: ruby
-  version: 3.4.7
-  uri: https://buildpacks.cloudfoundry.org/dependencies/ruby/ruby_3.4.7_linux_x64_cflinuxfs3_72757c9c.tgz
-  sha256: 72757c9c9fd8ada603b6f76a121052228e60b49f67205b5d4df2db12fc089f78
-  cf_stacks:
-  - cflinuxfs3
-  source: https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.7.tar.gz
-  source_sha256: 23815a6d095696f7919090fdc3e2f9459b2c83d57224b2e446ce1f5f7333ef36
 - name: ruby
   version: 3.4.7
   uri: https://buildpacks.cloudfoundry.org/dependencies/ruby/ruby_3.4.7_linux_x64_cflinuxfs4_95d83a23.tgz
@@ -218,7 +168,6 @@ dependencies:
   cf_stacks:
   - cflinuxfs4
   - cflinuxfs5
-  - cflinuxfs3
   source: https://rubygems.org/rubygems/rubygems-3.6.8.tgz
   source_sha256: da5340b42ba3ddc5ede4a6b948ffa5b409d48cb119e2937e27e4c0b13bf9c390
 - name: yarn
diff --git a/src/ruby/brats/brats_test.go b/src/ruby/brats/brats_test.go
index 9992751ae..801e0f4c7 100644
--- a/src/ruby/brats/brats_test.go
+++ b/src/ruby/brats/brats_test.go
@@ -38,13 +38,7 @@ var _ = Describe("Ruby buildpack", func() {
 			Expect(app.GetBody("/pg")).To(ContainSubstring("No such file or directory"))
 		})
 		By("supports mysql2", func() {
-			Expect(app.GetBody("/mysql2")).To(
-				Or(
-					// cflinuxfs3 and cflinuxfs4 have different libmysql versions, so diff msgs
-					ContainSubstring("Unknown MySQL server host 'testing'"),
-					ContainSubstring("Unknown server host 'testing'"),
-				),
-			)
+			Expect(app.GetBody("/mysql2")).To(ContainSubstring("Unknown server host 'testing'"))
 		})
 	})
 
diff --git a/src/ruby/supply/supply.go b/src/ruby/supply/supply.go
index 04d8242e4..578f85f97 100644
--- a/src/ruby/supply/supply.go
+++ b/src/ruby/supply/supply.go
@@ -445,7 +445,7 @@ func (s *Supplier) InstallJVM() error {
 			return err
 		}
 	} else {
-		// Legacy naming used in cflinuxfs3/4: flat tarball, no strip needed.
+		// Legacy naming used in cflinuxfs4: flat tarball, no strip needed.
 		if err := s.Installer.InstallOnlyVersion("openjdk1.8-latest", jvmInstallDir); err != nil {
 			return err
 		}