diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 77bd1d6..ac6a527 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -126,7 +126,7 @@ test:linux:bootstrap_script:
     - ./.gitlab/script/ghcup_bootstrap.sh
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
   extends:
     - .debian
 
@@ -136,13 +136,13 @@ test:linux:recommended:
   extends: .test_ghcup_version:linux
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
 
 test:linux:latest:
   extends: .test_ghcup_version:linux
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
   allow_failure: true
 
 ######## linux 32bit test ########
@@ -159,13 +159,13 @@ test:mac:recommended:
   extends: .test_ghcup_version:darwin
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
 
 test:mac:latest:
   extends: .test_ghcup_version:darwin
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
   allow_failure: true
 
 
@@ -175,13 +175,13 @@ test:freebsd:recommended:
   extends: .test_ghcup_version:freebsd
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
 
 test:freebsd:latest:
   extends: .test_ghcup_version:freebsd
   variables:
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
   allow_failure: true
 
 
@@ -196,7 +196,7 @@ release:linux:64bit:
   variables:
     ARTIFACT: "x86_64-linux-ghcup"
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
 
 
 release:linux:32bit:
@@ -223,7 +223,7 @@ release:darwin:
   variables:
     ARTIFACT: "x86_64-apple-darwin-ghcup"
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
     MACOSX_DEPLOYMENT_TARGET: "10.7"
 
 
@@ -239,5 +239,5 @@ release:freebsd:
   variables:
     ARTIFACT: "x86_64-portbld-freebsd-ghcup"
     GHC_VERSION: "8.10.3"
-    CABAL_VERSION: "3.4.0.0-rc4"
+    CABAL_VERSION: "3.4.0.0"
 
diff --git a/.gitlab/before_script/darwin/install_deps.sh b/.gitlab/before_script/darwin/install_deps.sh
index 2c53b5f..bc97b8e 100755
--- a/.gitlab/before_script/darwin/install_deps.sh
+++ b/.gitlab/before_script/darwin/install_deps.sh
@@ -9,8 +9,9 @@ mkdir -p "${TMPDIR}"
 curl -sSfL https://downloads.haskell.org/~ghcup/x86_64-apple-darwin-ghcup > ./ghcup-bin
 chmod +x ghcup-bin
 
-./ghcup-bin install ${GHC_VERSION}
-./ghcup-bin set ${GHC_VERSION}
-./ghcup-bin install-cabal ${CABAL_VERSION}
+./ghcup-bin upgrade -i -f
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml set ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install-cabal ${CABAL_VERSION}
 
 exit 0
diff --git a/.gitlab/before_script/freebsd/install_deps.sh b/.gitlab/before_script/freebsd/install_deps.sh
index d628f3f..b98c924 100755
--- a/.gitlab/before_script/freebsd/install_deps.sh
+++ b/.gitlab/before_script/freebsd/install_deps.sh
@@ -11,8 +11,9 @@ mkdir -p "${TMPDIR}"
 curl -sSfL https://downloads.haskell.org/~ghcup/x86_64-portbld-freebsd-ghcup > ./ghcup-bin
 chmod +x ghcup-bin
 
-./ghcup-bin install ${GHC_VERSION}
-./ghcup-bin install-cabal ${CABAL_VERSION}
-./ghcup-bin set ${GHC_VERSION}
+./ghcup-bin upgrade -i -f
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml set ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install-cabal ${CABAL_VERSION}
 
 exit 0
diff --git a/.gitlab/before_script/linux/alpine/install_deps.sh b/.gitlab/before_script/linux/alpine/install_deps.sh
index e4ea8a9..ca86076 100755
--- a/.gitlab/before_script/linux/alpine/install_deps.sh
+++ b/.gitlab/before_script/linux/alpine/install_deps.sh
@@ -24,8 +24,9 @@ else
 	curl -sSfL https://downloads.haskell.org/ghcup/x86_64-linux-ghcup > ./ghcup-bin
 fi
 chmod +x ghcup-bin
-./ghcup-bin install ${GHC_VERSION}
-./ghcup-bin install-cabal ${CABAL_VERSION}
+./ghcup-bin upgrade -i -f
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install-cabal ${CABAL_VERSION}
 
 # utils
 apk add --no-cache \
diff --git a/.gitlab/before_script/linux/install_deps.sh b/.gitlab/before_script/linux/install_deps.sh
index a9c0177..77550e4 100755
--- a/.gitlab/before_script/linux/install_deps.sh
+++ b/.gitlab/before_script/linux/install_deps.sh
@@ -12,7 +12,8 @@ sudo apt-get install -y libnuma-dev zlib1g-dev libgmp-dev libgmp10 libssl-dev li
 curl -sSfL https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup > ./ghcup-bin
 chmod +x ghcup-bin
 
-./ghcup-bin install ${GHC_VERSION}
-./ghcup-bin set ${GHC_VERSION}
-./ghcup-bin install-cabal ${CABAL_VERSION}
+./ghcup-bin upgrade -i -f
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml set ${GHC_VERSION}
+./ghcup-bin -s file://$(pwd)/ghcup-${JSON_VERSION}.yaml install-cabal ${CABAL_VERSION}
 
diff --git a/ghcup-0.0.4.yaml b/ghcup-0.0.4.yaml
index eecf38c..d10a8c9 100644
--- a/ghcup-0.0.4.yaml
+++ b/ghcup-0.0.4.yaml
@@ -1502,8 +1502,7 @@ ghcupDownloads:
               dlHash: 6898ccd6e6dc0872999c06daaf61d546164e12f60a1880d09852c9f0c59c5cf6
     3.2.0.0:
       viTags:
-      - Recommended
-      - Latest
+      - old
       viChangeLog: https://downloads.haskell.org/~cabal/cabal-install-3.2.0.0/changelog
       viArch:
         A_64:
@@ -1532,30 +1531,36 @@ ghcupDownloads:
             unknown_versioning:
               dlUri: https://downloads.haskell.org/~cabal/cabal-install-3.2.0.0/cabal-install-3.2.0.0-i386-unknown-linux.tar.xz
               dlHash: 2b3ac28549916de5f3379241797eaf60e84b6c001f2abbe73d9fadbbaf768e93
-    3.4.0.0-rc4:
+    3.4.0.0:
       viTags:
-      - Prerelease
+      - Recommended
+      - Latest
       viChangeLog: https://github.com/haskell/cabal/blob/master/release-notes/cabal-install-3.4.0.0.md
       viArch:
         A_64:
           Linux_Ubuntu:
-            unknown_versioning: &cabal-3400rc4-ubuntu
-              dlUri: http://oleg.fi/cabal-install-3.4.0.0-rc4/cabal-install-3.4.0.0-x86_64-ubuntu-16.04.tar.xz
-              dlHash: a1be168876816a624b206c55596d9bb5f442541c889ee2438d664698122b9ffe
+            unknown_versioning: &cabal-3400-ubuntu
+              dlUri: https://downloads.haskell.org/~cabal/cabal-install-3.4.0.0/cabal-install-3.4.0.0-x86_64-ubuntu-16.04.tar.xz
+              dlHash: cf28f9ffd763476aa2b1730d85cbf155d366fac541f78ee3951e8cb2d6de63e6
           Linux_Alpine:
             unknown_versioning:
-              dlUri: http://oleg.fi/cabal-install-3.4.0.0-rc4/cabal-install-3.4.0.0-x86_64-alpine-3.11.6-static-noofd.tar.xz
-              dlHash: 49dab6684483594e4c7c3e561ec477268002605253ad34701b471277efbe91bc
+              dlUri: https://downloads.haskell.org/~cabal/cabal-install-3.4.0.0/cabal-install-3.4.0.0-x86_64-alpine-3.11.6-static-noofd.tar.xz
+              dlHash: c74073fe79110946182e522fcadc8dcabf07c87583e8cf7801ed4e0c327241f6
           Linux_UnknownLinux:
-            unknown_versioning: *cabal-3400rc4-ubuntu
+            unknown_versioning: *cabal-3400-ubuntu
           Darwin:
             unknown_versioning:
-              dlUri: http://oleg.fi/cabal-install-3.4.0.0-rc4/cabal-install-3.4.0.0-x86_64-darwin-sierra.tar.xz
-              dlHash: a3f809a3388e90b9fdf52444e30ea9aad3894e2cbe53c37fc3311ceb106eda9e
+              dlUri: https://downloads.haskell.org/~cabal/cabal-install-3.4.0.0/cabal-install-3.4.0.0-x86_64-darwin-sierra.tar.xz
+              dlHash: cb10be9a53e856aa2d852fd88fb6944f138783ffe0ea84d93c9a69244e34ea91
           FreeBSD:
             unknown_versioning:
-              dlUri: http://oleg.fi/cabal-install-3.4.0.0-rc4/cabal-install-3.4.0.0-x86_64-freebsd-12.1-release.tar.xz
-              dlHash: 9705e16d03497b46be4ad477e6c64d10890af853eafa8a9adf6dba89aa9e05f7
+              dlUri: https://downloads.haskell.org/~cabal/cabal-install-3.4.0.0/cabal-install-3.4.0.0-x86_64-freebsd-12.1-release.tar.xz
+              dlHash: a1e2db664ec00e42a1e071a4181f6476f6e0bad321f1ddc0cf27831119f4c6d4
+        A_32:
+          Linux_UnknownLinux:
+            unknown_versioning:
+              dlUri: https://downloads.haskell.org/~cabal/cabal-install-3.4.0.0/cabal-install-3.4.0.0-i386-debian-9.tar.xz
+              dlHash: ef3750644a53f7b1fad141b2ad02d4c7a3b239ec0cbfa7f0528fb02c1dfcebce
   GHCup:
     0.1.12:
       viTags: