diff --git a/package-lock.json b/package-lock.json
index f22d6a66..a8176047 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -619,9 +619,9 @@
       }
     },
     "node_modules/@hpke/chacha20poly1305": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/@hpke/chacha20poly1305/-/chacha20poly1305-1.4.3.tgz",
-      "integrity": "sha512-0of93jR0wlq2lG4RvXyrzL2qXKvi/ITWSwEp1sSVfxys8wlGU3aKrEwj0NeCXoHHKb5ei/n9VzsdlpC0xZsvFg==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/@hpke/chacha20poly1305/-/chacha20poly1305-1.5.0.tgz",
+      "integrity": "sha512-IY05l6hrqI6WwJPpPxZmwu14ht/aqQzn6MmfnHuOnzb0iYGxQYX0w1e2TZHA/2w8uxzE+AIr4mDssHCpbhJSPg==",
       "dependencies": {
         "@hpke/common": "^1.4.3",
         "@noble/ciphers": "^0.5.3"
@@ -639,9 +639,9 @@
       }
     },
     "node_modules/@hpke/core": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.4.3.tgz",
-      "integrity": "sha512-10ZwPlNcoM8t9NN4BV26Q437WQv+bKldSVTDL1XM8PvJYz7HbhhJUKrfyMmLIU8jA93t7hYPsOM12eGlDJtklQ==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/@hpke/core/-/core-1.5.0.tgz",
+      "integrity": "sha512-l39NqGCQPUc2pQrZwqoAkKMdL1xwVson+ZaQl69LF1dOccKtHBwgu2FBjzo2RpkLE3sNC3RSqVVPDqHptPFRrw==",
       "dependencies": {
         "@hpke/common": "^1.4.3"
       },
@@ -650,9 +650,9 @@
       }
     },
     "node_modules/@hpke/dhkem-x25519": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/@hpke/dhkem-x25519/-/dhkem-x25519-1.4.3.tgz",
-      "integrity": "sha512-QFb09/hR/iJKurTvOY1PJ/TGr0CgAf2AO6HeyhP93afa5U3dg4xR038FhMvCw1XTe/hTvww9QoMJ+bAgMOwu7A==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/@hpke/dhkem-x25519/-/dhkem-x25519-1.5.0.tgz",
+      "integrity": "sha512-VSJy+YwRek7KTNiVSZipivI6U9ppQq/9vaHUNv/AEnk1CbbYL9xgDtFa9bf5pfqDEgKnUSwxnUCiO2SztI07jg==",
       "dependencies": {
         "@hpke/common": "^1.4.3",
         "@noble/curves": "^1.4.2",
@@ -2715,9 +2715,9 @@
       }
     },
     "node_modules/hpke-js": {
-      "version": "1.4.3",
-      "resolved": "https://registry.npmjs.org/hpke-js/-/hpke-js-1.4.3.tgz",
-      "integrity": "sha512-di8fhAcPSIcHPJpjtJRTZW8WG53SrnX/RYRM8UEdfVlWeMLddNf+BFFCLEYkyM5b3/JhojfaZ1+yuLj942aZhQ==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/hpke-js/-/hpke-js-1.5.0.tgz",
+      "integrity": "sha512-ko4OjlbVQxO5q+NuXOSB2hpIQFnR+Xa5QmWlg3g2EFf2SIj8fIwAS422PZfjw+kxNZ/mMz4fvCx7JrL/UDWccQ==",
       "dependencies": {
         "@hpke/chacha20poly1305": "^1.4.3",
         "@hpke/common": "^1.4.3",
@@ -4534,12 +4534,12 @@
         "@divviup/common": "^0.2.2",
         "@divviup/prio3": "^0.8.0",
         "@divviup/vdaf": "^0.8.0",
-        "hpke-js": "^1.4.3"
+        "hpke-js": "^1.5.0"
       },
       "devDependencies": {
-        "@hpke/chacha20poly1305": "^1.2.9",
-        "@hpke/core": "^1.2.9",
-        "@hpke/dhkem-x25519": "^1.2.9",
+        "@hpke/chacha20poly1305": "^1.5.0",
+        "@hpke/core": "^1.5.0",
+        "@hpke/dhkem-x25519": "^1.5.0",
         "esbuild": "^0.24.0"
       }
     },
diff --git a/packages/dap/package.json b/packages/dap/package.json
index 1f91549e..dbca371c 100644
--- a/packages/dap/package.json
+++ b/packages/dap/package.json
@@ -24,12 +24,12 @@
     "@divviup/common": "^0.2.2",
     "@divviup/prio3": "^0.8.0",
     "@divviup/vdaf": "^0.8.0",
-    "hpke-js": "^1.4.3"
+    "hpke-js": "^1.5.0"
   },
   "devDependencies": {
-    "@hpke/chacha20poly1305": "^1.2.9",
-    "@hpke/core": "^1.2.9",
-    "@hpke/dhkem-x25519": "^1.2.9",
+    "@hpke/chacha20poly1305": "^1.5.0",
+    "@hpke/core": "^1.5.0",
+    "@hpke/dhkem-x25519": "^1.5.0",
     "esbuild": "^0.24.0"
   }
 }