diff --git a/packages/fakta-beregning/package.json b/packages/fakta-beregning/package.json
index a189186d63..99cfe4dc4a 100644
--- a/packages/fakta-beregning/package.json
+++ b/packages/fakta-beregning/package.json
@@ -37,8 +37,8 @@
     "core-js": "3.39.0",
     "dayjs": "1.11.13",
     "dayjs-plugin-utc": "0.1.2",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
@@ -57,8 +57,8 @@
     "core-js": "3.37.1",
     "dayjs": "1.11.x",
     "dayjs-plugin-utc": "0.1.2",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-hook-form": "7.x",
     "react-intl": "6.x"
   },
diff --git a/packages/fakta-fordel-beregningsgrunnlag/package.json b/packages/fakta-fordel-beregningsgrunnlag/package.json
index 9c90ae9f27..66971576a9 100644
--- a/packages/fakta-fordel-beregningsgrunnlag/package.json
+++ b/packages/fakta-fordel-beregningsgrunnlag/package.json
@@ -36,7 +36,7 @@
     "classnames": "2.5.1",
     "core-js": "3.39.0",
     "dayjs": "1.11.13",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1",
     "uuid": "11.0.3"
@@ -55,7 +55,7 @@
     "classnames": "2.5.1",
     "core-js": "3.37.1",
     "dayjs": "1.11.x",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.x",
     "react-intl": "6.x",
     "uuid": "9.0.1"
diff --git a/packages/fakta-tilbakekreving-feilutbetaling/package.json b/packages/fakta-tilbakekreving-feilutbetaling/package.json
index 88a35dd81a..60a0b34c41 100644
--- a/packages/fakta-tilbakekreving-feilutbetaling/package.json
+++ b/packages/fakta-tilbakekreving-feilutbetaling/package.json
@@ -33,7 +33,7 @@
     "@navikt/ft-ui-komponenter": "workspace:^",
     "@navikt/ft-utils": "workspace:^",
     "moment": "2.30.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
@@ -47,7 +47,7 @@
     "@navikt/ft-ui-komponenter": "2.x",
     "@navikt/ft-utils": "2.x",
     "moment": "2.30.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.x",
     "react-intl": "6.x"
   },
diff --git a/packages/form-hooks/package.json b/packages/form-hooks/package.json
index 0ba57b9e25..a494710a01 100644
--- a/packages/form-hooks/package.json
+++ b/packages/form-hooks/package.json
@@ -34,8 +34,8 @@
     "classnames": "2.5.1",
     "dayjs": "1.11.13",
     "lodash.throttle": "4.1.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-hook-form": "7.53.2"
   },
   "peerDependencies": {
@@ -49,8 +49,8 @@
     "classnames": "2.5.1",
     "dayjs": "1.11.x",
     "lodash.throttle": "4.1.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-hook-form": "7.x"
   },
   "devDependencies": {
diff --git a/packages/internal/storybook-utils/package.json b/packages/internal/storybook-utils/package.json
index 3a9044cf11..4c3b4a4c51 100644
--- a/packages/internal/storybook-utils/package.json
+++ b/packages/internal/storybook-utils/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@navikt/ft-form-hooks": "workspace:^",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
diff --git a/packages/internal/utils-test/package.json b/packages/internal/utils-test/package.json
index db971a6d35..a5af68dc64 100644
--- a/packages/internal/utils-test/package.json
+++ b/packages/internal/utils-test/package.json
@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@navikt/ft-kodeverk": "^2.5.10",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-intl": "7.0.1"
   },
   "devDependencies": {
diff --git a/packages/plattform-komponenter/package.json b/packages/plattform-komponenter/package.json
index b316d79d8f..ed650c84a7 100644
--- a/packages/plattform-komponenter/package.json
+++ b/packages/plattform-komponenter/package.json
@@ -39,8 +39,8 @@
     "classnames": "2.5.1",
     "lodash.throttle": "4.1.1",
     "prop-types": "15.8.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-popper": "2.3.0"
   },
   "peerDependenciesMeta": {
@@ -61,8 +61,8 @@
     "eslint": "9.16.0",
     "lodash.throttle": "4.1.1",
     "prop-types": "15.8.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-popper": "2.3.0",
     "storybook": "8.4.7",
     "stylelint": "16.11.0",
diff --git a/packages/prosess-beregningsgrunnlag/package.json b/packages/prosess-beregningsgrunnlag/package.json
index 4027b6649c..7c96c482b8 100644
--- a/packages/prosess-beregningsgrunnlag/package.json
+++ b/packages/prosess-beregningsgrunnlag/package.json
@@ -36,7 +36,7 @@
     "classnames": "2.5.1",
     "dayjs": "1.11.13",
     "echarts": "5.5.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
@@ -54,7 +54,7 @@
     "classnames": "2.5.1",
     "dayjs": "1.11.x",
     "echarts": "5.5.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.x",
     "react-intl": "6.x"
   },
diff --git a/packages/prosess-tilbakekreving-foreldelse/package.json b/packages/prosess-tilbakekreving-foreldelse/package.json
index 4c234f90c7..b477b3c443 100644
--- a/packages/prosess-tilbakekreving-foreldelse/package.json
+++ b/packages/prosess-tilbakekreving-foreldelse/package.json
@@ -35,7 +35,7 @@
     "@navikt/ft-utils": "workspace:^",
     "dayjs": "1.11.13",
     "moment": "2.30.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
@@ -50,7 +50,7 @@
     "@navikt/ft-ui-komponenter": "2.x",
     "@navikt/ft-utils": "2.x",
     "dayjs": "1.11.x",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.x",
     "react-intl": "6.x"
   },
diff --git a/packages/prosess-tilbakekreving-vedtak/package.json b/packages/prosess-tilbakekreving-vedtak/package.json
index cd0fbaaf0a..5458721c91 100644
--- a/packages/prosess-tilbakekreving-vedtak/package.json
+++ b/packages/prosess-tilbakekreving-vedtak/package.json
@@ -34,7 +34,7 @@
     "@navikt/ft-ui-komponenter": "workspace:^",
     "@navikt/ft-utils": "workspace:^",
     "classnames": "2.5.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
@@ -49,7 +49,7 @@
     "@navikt/ft-ui-komponenter": "2.x",
     "@navikt/ft-utils": "2.x",
     "classnames": "2.5.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.x",
     "react-intl": "6.x"
   },
diff --git a/packages/prosess-tilbakekreving/package.json b/packages/prosess-tilbakekreving/package.json
index 2c88a5ded4..dd9fce692c 100644
--- a/packages/prosess-tilbakekreving/package.json
+++ b/packages/prosess-tilbakekreving/package.json
@@ -35,7 +35,7 @@
     "@navikt/ft-utils": "workspace:^",
     "dayjs": "1.11.13",
     "moment": "2.30.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.2",
     "react-intl": "7.0.1"
   },
@@ -51,7 +51,7 @@
     "@navikt/ft-utils": "2.x",
     "dayjs": "1.11.x",
     "moment": "2.30.1",
-    "react": "18.3.1",
+    "react": "19.0.0",
     "react-hook-form": "7.53.0",
     "react-intl": "6.x"
   },
diff --git a/packages/ui-komponenter/package.json b/packages/ui-komponenter/package.json
index 07debdcb49..4f8075ff3e 100644
--- a/packages/ui-komponenter/package.json
+++ b/packages/ui-komponenter/package.json
@@ -29,8 +29,8 @@
     "@navikt/ds-react": "7.6.0",
     "@navikt/ft-utils": "^2.5.4",
     "classnames": "2.5.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-intl": "7.0.1",
     "react-modal": "3.16.1"
   },
@@ -40,8 +40,8 @@
     "@navikt/ds-react": "7.x",
     "@navikt/ft-utils": "2.x",
     "classnames": "2.5.1",
-    "react": "18.3.1",
-    "react-dom": "18.3.1",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
     "react-intl": "6.x",
     "react-modal": "3.16.1"
   },
diff --git a/yarn.lock b/yarn.lock
index 845e75781f..19fd73446d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3161,8 +3161,8 @@ __metadata:
     dayjs: 1.11.13
     dayjs-plugin-utc: 0.1.2
     eslint: 9.16.0
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3185,8 +3185,8 @@ __metadata:
     core-js: 3.37.1
     dayjs: 1.11.x
     dayjs-plugin-utc: 0.1.2
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-hook-form: 7.x
     react-intl: 6.x
   languageName: unknown
@@ -3218,7 +3218,7 @@ __metadata:
     cross-env: 7.0.3
     dayjs: 1.11.13
     eslint: 9.16.0
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3241,7 +3241,7 @@ __metadata:
     classnames: 2.5.1
     core-js: 3.37.1
     dayjs: 1.11.x
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.x
     react-intl: 6.x
     uuid: 9.0.1
@@ -3271,7 +3271,7 @@ __metadata:
     cross-env: 7.0.3
     eslint: 9.16.0
     moment: 2.30.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3289,7 +3289,7 @@ __metadata:
     "@navikt/ft-ui-komponenter": 2.x
     "@navikt/ft-utils": 2.x
     moment: 2.30.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.x
     react-intl: 6.x
   languageName: unknown
@@ -3318,8 +3318,8 @@ __metadata:
     dayjs: 1.11.13
     eslint: 9.16.0
     lodash.throttle: 4.1.1
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-hook-form: 7.53.2
     storybook: 8.4.7
     stylelint: 16.11.0
@@ -3337,8 +3337,8 @@ __metadata:
     classnames: 2.5.1
     dayjs: 1.11.x
     lodash.throttle: 4.1.1
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-hook-form: 7.x
   languageName: unknown
   linkType: soft
@@ -3366,7 +3366,7 @@ __metadata:
   dependencies:
     "@navikt/ft-form-hooks": "workspace:^"
     eslint: 9.16.0
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     typescript: 5.7.2
@@ -3380,7 +3380,7 @@ __metadata:
     "@navikt/ft-kodeverk": ^2.5.10
     cross-env: 7.0.3
     eslint: 9.16.0
-    react: 18.3.1
+    react: 19.0.0
     react-intl: 7.0.1
     typescript: 5.7.2
   languageName: unknown
@@ -3445,8 +3445,8 @@ __metadata:
     eslint: 9.16.0
     lodash.throttle: 4.1.1
     prop-types: 15.8.1
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-popper: 2.3.0
     storybook: 8.4.7
     stylelint: 16.11.0
@@ -3461,8 +3461,8 @@ __metadata:
     classnames: 2.5.1
     lodash.throttle: 4.1.1
     prop-types: 15.8.1
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-popper: 2.3.0
   peerDependenciesMeta:
     react-popper:
@@ -3496,7 +3496,7 @@ __metadata:
     dayjs: 1.11.13
     echarts: 5.5.1
     eslint: 9.16.0
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3518,7 +3518,7 @@ __metadata:
     classnames: 2.5.1
     dayjs: 1.11.x
     echarts: 5.5.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.x
     react-intl: 6.x
   languageName: unknown
@@ -3549,7 +3549,7 @@ __metadata:
     dayjs: 1.11.13
     eslint: 9.16.0
     moment: 2.30.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3568,7 +3568,7 @@ __metadata:
     "@navikt/ft-ui-komponenter": 2.x
     "@navikt/ft-utils": 2.x
     dayjs: 1.11.x
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.x
     react-intl: 6.x
   languageName: unknown
@@ -3597,7 +3597,7 @@ __metadata:
     classnames: 2.5.1
     cross-env: 7.0.3
     eslint: 9.16.0
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3616,7 +3616,7 @@ __metadata:
     "@navikt/ft-ui-komponenter": 2.x
     "@navikt/ft-utils": 2.x
     classnames: 2.5.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.x
     react-intl: 6.x
   languageName: unknown
@@ -3647,7 +3647,7 @@ __metadata:
     dayjs: 1.11.13
     eslint: 9.16.0
     moment: 2.30.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.2
     react-intl: 7.0.1
     storybook: 8.4.7
@@ -3667,7 +3667,7 @@ __metadata:
     "@navikt/ft-utils": 2.x
     dayjs: 1.11.x
     moment: 2.30.1
-    react: 18.3.1
+    react: 19.0.0
     react-hook-form: 7.53.0
     react-intl: 6.x
   languageName: unknown
@@ -3706,8 +3706,8 @@ __metadata:
     classnames: 2.5.1
     cross-env: 7.0.3
     eslint: 9.16.0
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-intl: 7.0.1
     react-modal: 3.16.1
     storybook: 8.4.7
@@ -3721,8 +3721,8 @@ __metadata:
     "@navikt/ds-react": 7.x
     "@navikt/ft-utils": 2.x
     classnames: 2.5.1
-    react: 18.3.1
-    react-dom: 18.3.1
+    react: 19.0.0
+    react-dom: 19.0.0
     react-intl: 6.x
     react-modal: 3.16.1
   languageName: unknown