diff --git a/3.0-rc/alpine3.12/Dockerfile b/3.0/alpine3.12/Dockerfile
similarity index 96%
rename from 3.0-rc/alpine3.12/Dockerfile
rename to 3.0/alpine3.12/Dockerfile
index 0e3634a8ea..ff7bf6dca1 100644
--- a/3.0-rc/alpine3.12/Dockerfile
+++ b/3.0/alpine3.12/Dockerfile
@@ -12,9 +12,9 @@ RUN set -eux; \
 	} >> /usr/local/etc/gemrc
 
 ENV LANG C.UTF-8
-ENV RUBY_MAJOR 3.0-rc
-ENV RUBY_VERSION 3.0.0-rc1
-ENV RUBY_DOWNLOAD_SHA256 f1adda082f9291e394d25ed32975abbef90962dc4c8b11130586a0151558e79a
+ENV RUBY_MAJOR 3.0
+ENV RUBY_VERSION 3.0.0
+ENV RUBY_DOWNLOAD_SHA256 68bfaeef027b6ccd0032504a68ae69721a70e97d921ff328c0c8836c798f6cb1
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
diff --git a/3.0-rc/buster/Dockerfile b/3.0/buster/Dockerfile
similarity index 94%
rename from 3.0-rc/buster/Dockerfile
rename to 3.0/buster/Dockerfile
index 1022e69193..0f81bb7e13 100644
--- a/3.0-rc/buster/Dockerfile
+++ b/3.0/buster/Dockerfile
@@ -9,9 +9,9 @@ RUN set -eux; \
 	} >> /usr/local/etc/gemrc
 
 ENV LANG C.UTF-8
-ENV RUBY_MAJOR 3.0-rc
-ENV RUBY_VERSION 3.0.0-rc1
-ENV RUBY_DOWNLOAD_SHA256 f1adda082f9291e394d25ed32975abbef90962dc4c8b11130586a0151558e79a
+ENV RUBY_MAJOR 3.0
+ENV RUBY_VERSION 3.0.0
+ENV RUBY_DOWNLOAD_SHA256 68bfaeef027b6ccd0032504a68ae69721a70e97d921ff328c0c8836c798f6cb1
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
diff --git a/3.0-rc/buster/slim/Dockerfile b/3.0/buster/slim/Dockerfile
similarity index 95%
rename from 3.0-rc/buster/slim/Dockerfile
rename to 3.0/buster/slim/Dockerfile
index 1401f3739c..df682c5712 100644
--- a/3.0-rc/buster/slim/Dockerfile
+++ b/3.0/buster/slim/Dockerfile
@@ -23,9 +23,9 @@ RUN set -eux; \
 	} >> /usr/local/etc/gemrc
 
 ENV LANG C.UTF-8
-ENV RUBY_MAJOR 3.0-rc
-ENV RUBY_VERSION 3.0.0-rc1
-ENV RUBY_DOWNLOAD_SHA256 f1adda082f9291e394d25ed32975abbef90962dc4c8b11130586a0151558e79a
+ENV RUBY_MAJOR 3.0
+ENV RUBY_VERSION 3.0.0
+ENV RUBY_DOWNLOAD_SHA256 68bfaeef027b6ccd0032504a68ae69721a70e97d921ff328c0c8836c798f6cb1
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built